# Mental Arithmetic, Basic and General Mathematics Practice Questions Test

Solution!

#### Select the correct answer

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

#### Question No 59

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

#### Select the correct answer

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

#### Question No 60

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

#### Select the correct answer

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

#### Question No 61

Multiply 15 by 6 and subtract 29.

#### Select the correct answer

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

#### Question No 62

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

#### Select the correct answer

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

#### Question No 63

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

#### Select the correct answer

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

#### Question No 64

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

#### Select the correct answer

Solution!
572 is completely divisible by 6..

#### Question No 65

Multiply 6.85 by 7.

#### Select the correct answer

Solution!
6.85 * 7 = 47.95.

#### Question No 66

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?

#### Select the correct answer

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

#### Question No 67

What is 126 divided by 3?

Solution!
126 / 3 = 42.

#### Question No 68

What is 3206 divided by 7?

#### Select the correct answer

Solution!
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..

#### Question No 69

What is 5/8 of 240?

#### Select the correct answer

Solution!
(5/8) * 240 = 150.

#### Question No 70

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

#### Select the correct answer

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

#### Question No 71

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

#### Select the correct answer

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

#### Question No 72

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?

#### Select the correct answer

Solution!
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.

#### Question No 73

Multiply 7 by 4 by 6.

#### Select the correct answer

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

#### Question No 74

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

#### Select the correct answer

Solution!
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..

378 * ? = 252

Solution!
252 / 378 = 2/3.

#### Question No 76

What is 3/4 of 92 plus 13?

#### Select the correct answer

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

#### Question No 77

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

#### Select the correct answer

Solution!
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..

#### Question No 78

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

#### Select the correct answer

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

#### Question No 79

What is average of 2 , 5 and 8?

#### Select the correct answer

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

#### Question No 80

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

#### Select the correct answer

Solution!
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..

#### Question No 81

What is 9 multiplied by 8?

Solution!
9 * 8 = 72.

#### Question No 82

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

#### Select the correct answer

Solution!
No answer description is available for this question..

#### Question No 83

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

#### Select the correct answer

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

#### Question No 84

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?

#### Select the correct answer

Solution!
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..

#### Question No 85

Divide 52 by 4 and add 17 multiplied by 3.

#### Select the correct answer

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

#### Question No 86

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

Solution!
19+17+15 = 51.

#### Question No 87

Which one of the following is a prime number ?

#### Select the correct answer

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

#### Question No 88

What is the sum of first 5 positive even integers?

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

#### Question No 89

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

Solution!
100 - 64 = 36%.

#### Question No 90

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

#### Select the correct answer

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

#### Question No 91

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

#### Select the correct answer

Solution!
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.

#### Question No 92

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?

#### Select the correct answer

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

#### Question No 93

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

#### Select the correct answer

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

#### Question No 94

Deduct 7.3 from 34.2.

#### Select the correct answer

Solution!
34.2 - 7.3 = 26.9.

#### Question No 95

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

#### Select the correct answer

Solution!
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..

#### Question No 96

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

#### Select the correct answer

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

#### Question No 97

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

#### Select the correct answer

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

#### Question No 98

Divide 56 by 8 and add 17.

#### Select the correct answer

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

2664/12/6=?

#### Select the correct answer

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

#### Question No 100

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

#### Select the correct answer

Solution!
3*14 = 42 (lesser than 48)!and!2*14 = 28 (greater than 24)..
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100