A/B = 2/3. If value of A is 8 What is the value of B?

8/B = 2/3!2B = 24!B = 12! !*In short-cut way We can find 2 is multiplied by 4 to get 8 so if we multiply 3 with 4 we get 12 which is the value b B when value of A is 8..

John's fail to pass ratio in mathematics test is 5/2. In how many tests did he pass if total tests conducted were 42?

Pass ratio = (2/7)*42 = 12.

A coach trip starts at nine fifty.It lasts twenty-five minutes.At what time does it finish?

No answer description available for this question..

Which one of the following is a prime number ?

307 is only number which is divisible by 1 and by itself only..

If a amount of $120 is divided among A and B in the ratio 1/2 then A will get?

A will get half amount which B got.So if A's amount is 40, B's amount will be 80 (double of A's amount)..

Price of a mobile phone is Rs. 8,000. A man has enough money to purchase 3 mobiles. How many mobile can he purchase if the price is reduced by Rs. 2000?

Minimum amount of money that he has = 8,000 * 3 = 24,000! !If price is reduced to 6,000, he can purchase 24,000/6,000 = 4.

16 men dig a ditch in 10 days. How many men would be required to complete the job in half the time?

Double number of men are required to complete the job in half time..

30 men can complete a work in 30 days how long will 20 men take to complete the same amount of work?

x/30 = 30/20! !x = (30/20)*30 = 45.

Multiply 72 by 15.

72 * 15 = 1080! !Other way is! !72 * 10 = 720!and!720 / 2 = 360! !720 + 360 = 1080.

In a Zoo deers and lions are in ratio of 5/2. If there are 20 deers how many lion are there?

20 is 4 times of 5 So in this way 4 times of 2 will be 8..

What is 5.9 + 6.8 + 7.34?

6.8 + 7.34 = 14.14! !14.14 + 5.9 = 20.04.

If the product of 4 consecutive integers is 120, which is greater?

5*4*3*2 = 120.

What is 9 multiplied by 8?

9 * 8 = 72.

A number is thrift if it is a multiple of 2 or 3. How many thrift numbers are there between 0 and 15?

Thrift numbers between 0 and 15 are following! !2,3,4,6,8,9,10,12,14.

At a particular time shadow of a pole 40m long is measured to be 30m. If the length of a plaza is 200m then how long would the shadow be at about the same time?

Shadow of 40m pole = 30m! !Shadow of 1m pole = 30/40m! !Shadow of 200m plaza = (30/40)*200 = 150m.

Subtract eight and nine from twenty-five.

25 - 8 - 9 = 8.

The average of five numbers is 27.If one number is excluded the average becomes 25.What is the excluded number?

No answer description available for this question..

Subtract 369 from 1250.

1250 - 369 = 881.

What is 35% of 250?

35 * (250/100) = 87.5! !Quick way to find answer from options is! !33% of 250 is nearly 83(250/3 = 83.3)! !So, answer should be in 80's which is only one option 87.5.

Multiply 7 by 12 and divide by 6.

7 * 12 = 84! !84 / 6 = 14.

378 * ? = 252

252 / 378 = 2/3.

Multiply 6.85 by 7.

6.85 * 7 = 47.95.

The average of 20 numbers is 0, How many of them may be greater than zero,at the most?

Maximum Numbers that can be greater than 0 to maintain total average greater than 0 are 19..

If m is an even integer and 3m < 48 and 2m > 24 then m = ?

3*14 = 42 (lesser than 48)!and!2*14 = 28 (greater than 24)..

7/21 in lowest term is?

7/21 = 1/3.

In the first 10 overs of a cricket game the run rate was only 3.2 What should be the run rate in the remaining 40 overs to reach the target of 282?

3.2 * 10 = 32! !After 10 overs score is 32.! !Remaining score = 282 - 32 = 250! !Required rate = 250 / 40 = 6.25 runs/over.

John can read 8 pages of a book in 7 minutes, how long will he take to read 40 pages?

40/8 = 5! !As pages are increased 5 times. So minutes will also increase 5 time.! !7 * 5 = 35.

Add 2/5 of 90 to 5/6 of 78.

(2/5) * 90 = 36! !(5/6) * 78 = 65! !36 + 65 = 101.

How much is 25% of $200?

25 * (200/100) = $50! !Or!200 / 4 = $50.

15 men were hired to plough a piece of land in 10 days. How many more men will be required to do the same job in 3 days?

x/15 = 10/3! !x = (10/3)*15! x = 50.! !So more number of men required = 50-15 = 35.

What is 55% of 320?

55 * (320 / 100) = 176! !Quick way to find answer from options is! !50% of 320 is 160 so answer should be greater than 160!Only one option is greater than 160 which is 176..

100/101 = ?

100/101 = 0.990099.

A cigarette case is full of cigars and cigarettes, probability of a cigarette is 8/15. What is the ratio of cigars to cigarettes.

In 15 cigars and cigarettes there are 8 cigarettes So ratio between cigars and cigarettes is 8/7. Which means there are 8 cigarettes and 7 cigars..

If x = 8*89 and y = 8*85, What is the value of x-y ?

(8*89) - (8*85)!=8*(89 - 85)!=8*(4)=!32.

Divide 672 by 12.

672 / 12 = 56.

Divide 56 by 8 and add 17.

56 / 8 = 7! !7 + 17 = 24.

What is average of 3, 5 and 10?

(3+5+10)/3 = 18/3 = 6.

Multiply 86 by 9 and add to 13 multiplied by 6.

86 * 9 = 774! !13 * 6 = 78! !774 + 78 = 852.

What is 126 divided by 3?

126 / 3 = 42.

If n is not equal to 0, Which of the following must be greater than n? (1) 2n (2) n^2 (3) 2-n

Square of every non zero integer is grater than the orignal number.! !*Note that multiple of 2 of negative numbers are lesser than the orignal number..

35 Kg of spinach costs Rs. 28. How many Kg of spinach can be bought for Rs. 16?

Amount of spinach which can be bought in Rs. 28 = 35 kg! !Amount of spinach which can be bought in Rs. 1 = 35/28 = 5/4 Kg! !Amount of spinach which can be bought in Rs. 16 =(5/4)*16 = 20 Kg.

What is 8/40 expressed as a decimal?

Simple way is! !(8/4) * (1/10) = 2 * 0.1 = 0.2.

A bus covers a distance of 60 Km in 1.5 hr. How far it would travel in half hour.

Distance covered in 1.5 hr = 60! !Distance covered in 1 hr = 60/1.5 = 40 Km! !Distance Covered in 0.5 hr = 40 * 0.5 = 20.

A motorcyclist travels 200 Km in 1 hr. How many minutes if would take him to travel 120 Km?

200 Km distance covered in minutes = 60! !1 Km distance covered in minutes = 60/200 = 3/10! !120 Km distance covered in minutes = (3/10) * 120 = 36 minutes.

Average of 3 numbers is 15. What is the sum of 3 numbers?

Let sum is x. ! !x/3 = 15!x = 15*3 = 45.

Multiply 694 by 11.

694 * 11 = 7634! !Quick way to find answer from options is! !694 * 10 = 6940! !So answer must be greater than 6940 and only one option is greater than 6940 which is 7634..

64% of the children in school are girls.What percentage are boys?

100 - 64 = 36%.

Which of the following is the least number which is divisible by both 12 and 18?

Least common multiple of 12 and 18 is 36.

A cycle costs $170.Jane saves $50 each week.How many weeks will it be before she can buy it?

170 / 50 = 3.4!But 3.4 is not in options so nearest Option is 4.

What is 5/8 of 240?

(5/8) * 240 = 150.

What is average of 2 , 5 and 8?

(2+5+8)/3 = 15/3 = 5.

What is 45% of 300?

45 * (300/100) = 135! !Quick way to find answer from options is! !50% of 300 is 150 so 45% of 300 should be less than 150! !So, it may be 149 or 135!149 is very close to 150 which is not possible! !Hence, 135 is correct answer..

Deduct 865 from 1063.

1063 - 865 = 198.

If A/B is 2/3 and difference between values of A and B is 10 What is value of B?

If B is 30, A is 20 so difference of 10 is maintained..

What is 3/4 of 92 plus 13?

(3/4) * 92 = 69! !69 + 13 = 82.

What is smallest integer greater than 1 that leaves remainder 1 when it is divided by 5 or 8?

40 is the least common multiple of 5 and 8 so 41 will be the smalles integer that leaves 1 when it is divided by 5 or 8..

Deduct 7.3 from 34.2.

34.2 - 7.3 = 26.9.

Add 32 + 8 + 18 + 25.

32 + 8 = 40! !40 + 18 = 58! !58 + 25 = 83.

Ali can type at a speed of 25 words per minute. How many words he can type in one hour?

Typed words in 1 minute = 25!Typed words in 60 minutes = 60 * 25 = 1500.

If average of 8, 7, 12, 15 and x is 11 what is x?

(8+7+12+15+x)/5 = 11! !42+x = 55! !x = 55-42!=13.

What is 5/9 of 270?

(5/9) * 270 = 150.

Average of 4 numbers is 24. What is the sum of the four numbers?

x/4 = 24!x = 24*4!x = 96.

What is 3206 divided by 7?

3206 / 7 = 458! !No need to perform complete devision first digit comes 4 after devision and there is only one option in which first digit is 4..

2+2*2?

2 + (2 * 2) = 6! !Multiplication is performed first and subtraction afterwards.! !Sequence of solving operators is!/!*!+!-.

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, what is the average marks of all the students?

Weighted average will be more close to the average of that batch which has maximum number of students so aanswer is 54.68! !If you want to calculate it by formula then solution is! !(55*50 + 60*55 + 45*60)/(55 + 60 + 45) = 54.68.

If the sum of three consecutive whole numbers is 15, what is the largest of the three numbers?

6+5+4 = 15.

Multiply 15 by 6 and subtract 29.

15 * 6 = 90! !90 - 29 = 61.

What is the largest 4 digit number exactly divisible by 88?

No answer description available for this question..

In a class the ratio of boys to girls is 1/3. What percent of students are girls?

Percentage of girls in class = (3/4)*100 = 75%.

The side of a square is 2. What is the area of the square?

Area of square is!2 * (any side)!= 2 * (2) = 4 square units.

15 weavers can weave some length of cloth in 1 hr. 24 minutes. How many more weavers are required to do the same job in 60 minutes?

x/15 = 84/60! !x = (84/60)*15 = 21! !So 21 - 15 = 6 more weavers are required to do the same job in 60 minutes..

What is 15 multiplied by 11?

15 * 11 = 165.

Multiply 7 by 4 by 6.

7 * 4 = 28! !28 * 6 = 168.

In a box ratio of DVD to VCD is 2/3. Which of the following cannot be the total number of CD's in the box?

As 2+3 = 5, So total number of CD's must be multiple of 5.! !In the options all are multiple of 5 except 11! !So 11 is the correct answer..

Which is greater, (A) 5/8 of 112 , (B) 7/8 of 88?

(5/8) * 112 = 70! !and!(7/8) * 88 = 77! !Hence, (7/8) of 88 is greater..

Which of the following is a prime number?

A prime number is the number which is divisible by 1 and by itself only! !and 2 is the only one even number which is prime..

If n is even, Which of the following cannot be odd? (1) n+3 (2) 3n (3) n^2 - 1

3n and n^2 - 1 will always odd so in case of 3n answers will be even..

If the number 481z673 is completely divisible by 9, what is the the smallest whole number in place of z?

Select answer from options! !4817673 is completely devisible by 9..

49/10 + 49/10 + 49/10 = ?

By taking LCM of these three terms we have! !(49+49+49)/10 = 147/10.

2664/12/6=?

(2664/12) * (1/6) = 37.

What is the difference of the product and the quotient of 8 and 8?

8*8 = 64!and!8/8 = 1!So,!64 - 1 = 63.

Divide 52 by 4 and add 17 multiplied by 3.

52 / 4 = 13! !17 * 3 = 51! !13 + 51 = 64.

Ahmad reads 24 pages of a book in 15 minutes. The rate of pages read per minute by him will be

24/15 = 8/5!8/5 = 1.6.

The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg.Find the average weights of all the boys in the class.

! !In this question weighted average is calculated rather than simple average! !(50.25*16 + 45.15*8)/(16+8) = 48.55.

If the number 5r2 is divisible by 6, then r = ?

572 is completely divisible by 6..

What is the average of 8, 13, 25, 43, and 11?

(8+13+25+43+11)/5 = 100/5!= 20.

If p is and odd integer and 7p > 50 and 3p < 35 then p is?

7*11 = 77 (greater than 35) and 3*7 = 33 (lesser than 35)! !*Note that 8 is also true but in question it is explicitly said that integer must be odd..

Sum of three consecutive odd integers is 51. Which of the following is the smallest of the three?

19+17+15 = 51.

At an educational trip of a school ratio of boys to girls students was 4/5. how many students were on the tour?

Data is insufficient for this problem. But we can find the answer from the options. As 4 + 5 = 9, So answer should be multiple of 9 to fullfil the condition of 4/5 ratio..

What is 10 less 5/9 of 117?

(5/9) * 117 = 65! !65 - 10 = 55.

What must be added to each numerator and denominator of 13/29 so that it becomes 1/2

(13+3)/(29+3) = 1/2.

Which of the following fractions is closed to 0.5?

15/30 = 1/2!1/2 = 0.5.

What is average of 2, 5 , 6 , 9 and 18?

(2+5+6+9+18)/5 = 40/5 = 8.

What is the cost of three tapes at $1.99 each?

1.99 * 3 = $5.97.

What is the sum of first 5 positive even integers?

2+4+6+8+10 = 30.

What is average of 12 , 15 and 18?

(12+15+18)/3 = 45/3 = 15.

Add 5683 to 1729 and divide by 2.

5683 + 1729 = 7412! !7412 / 2 = 3706.

Which of the following is an integer that has a remainder of 1 when it is divided by 4,5 and 6?

Least common multiple of 4,5 and 6 is 60 so 61 is an integer that has a remainder of 1 when it is divided by 4,5 and 6..

If one third of the staff at school are teachers find the ratio between teachers to non-teachers.

ratio of teachers = 1/3! !ratio of non-teachers = 2/3! !Ratio of teachers to non-teachers = (1/3) * (3/2) = 1/2.

When R is divided by 7 remainder is 3. What is the remainder when 3R is divided by 7?

No answer description is available for this question..