# IQ Contest, Daily, Weekly & Monthly IQ & Mathematics Competitions

On selling 17 balls at the rate $500 there is a loss equal to price of 5 balls . The cost price of a ball? #### Select the correct answer Solution! (C.p of 15 balls)-( S.p of 15 balls)= (price of 5 balls) C.p of 12 balls=S.p of 17 balls=500 =41 . #### Question No 2 60, 60, 48, 48, 36, 36, 24...? Find next pair? #### Select the correct answer Solution! Difference between pairs is 12.. #### Question No 3 In following questions, one term in number series is incorrect. Find out the incorrect number 5, 27, 61, 122, 213, 340, 509 #### Select the correct answer Solution! The correct sequence is 23 - 3, 33 - 3, 43 - 3, 53 - 3, 63 - 3, 73 - 3, 83 - 3. So, 27 is wrong and should be replaced by 33 - 3 i.e. 24.. #### Question No 4 Which is the greatest? 2/5 , 3/5 , 4/5 , 11/15 , 7/15 #### Select the correct answer Solution! No explanation available for this question.. #### Question No 5 Train running at 70 kilometre per hour takes 1 hour to cover a distance if the speed is reduced by 20km/hr then in how much time it will cover the distance? #### Select the correct answer Solution! Reduced speed= 70-20=50 km/hr Now car will take 70/50*60=84 . #### Question No 6 How many litres of pure acid are there in 90 litres of 30% solution #### Select the correct answer Solution! 30% of 90=27. #### Question No 7 Find is to Lose as Construct is to: #### Select the correct answer Solution! No explanation available for this question.. #### Question No 8 1/4 is to 1/8 as 8/8 is to #### Select the correct answer Solution! No explanation available for this question.. #### Question No 9 The average temperature on Wednesday, Thursday and Friday was 25. The average temperature on Thursday ,Friday and Saturday was 24. If the temperature on Saturday was 27, what was the temperature on Wednesday? #### Select the correct answer Solution! Total temperature on Wednesday, Thursday and Friday was 25 Ã— 3 = 75 Total temperature on Thursday ,Friday and Saturday was 24 Ã— 3 = 72 Hence, difference b/ w the temperature on Wednesday and Saturday = 3 If Saturday temperature = 27, then Wednesday temperature = 27 + 3 = 30 . #### Question No 10 A train covers a distance in 50 minutes if it runs at a speed of 48 kilometre per hour on an average the speed at which the train must run to reduce the time of journey to 40 minutes will be? #### Select the correct answer Solution! S=vxt/6=40 km Time=40/60 hr New speed=40*3/2=60 kmph . #### Question No 11 Determin if the ratio 1.5 :5 is equal to? #### Select the correct answer Solution! 1.5 : 5 1.5 x 4 = 5 Ã—4 6:20 Only 6 : 20 is correct option. . #### Question No 12 The present ages of Lewis and Brown is 1:2. Three years from now their ages be in ratio 3:5. Find the age of Brown after 5years? #### Select the correct answer Solution! Let Brown=b Lewis=l Present ages be b/l=1:2 2l-b=0....eq(1) After three years l+3/b+3=3:5 5l-3b=6 By resolving eq b=12 l=6 After 5 years l= 11 b=17 . #### Question No 13 If x is an odd integer and 3x < 30 and 2x > 15. What is x? #### Select the correct answer Solution! No explanation available for this question.. #### Question No 14 35 + 15 x 1.5 = ? #### Select the correct answer Solution! 35 + 15 x3/2 = 35 +45/2 = 35 + 22.5 = 57.5 . #### Question No 15 In 1772 Sophia was thrice as jim but in 1775 Sofia was only twice as old as jim was. How many old was jim in 1784? #### Select the correct answer Solution! Let's In 1772 Sofia age's= x jim age's y When Sofia was thrice as jim x = 3y.....(1) but after 5 years Sofia was twice. X + 5 = 2( Y + 5)....... (2) by substituting equations. Y=5 but after 12 years in 1784 jim was: 17 . #### Question No 16 By selling an article for$100 A shopkeeper losses 20% what is the cost price of the article?

Solution!
Let cost price of the article is x.
20% of x=(x*20)/100=x/5
X/5+100=x
X+500=5x
4x=500
X=125
.

#### Question No 17

When Kumar was born his mother's age was half of his father's age who was 40 years old. Now Kumar is 10 years old. What is the age of his mother?

Solution!
No explanation available for this question..

#### Question No 18

A man has a daughter and a son. The son is is three years older than the daughter. In one year the man will be six time as old as the daughter is now. In ten years the man will be fourteen years older than the combined ages of his children at that time. what is the man's present age?

Solution!
Let's the age of daughter=x
age f son = x+3
age of father now=6x-1
condition:
M+0={(S+D)+ 10}+14]
6x-1=[{(x+3)+10}+14]
4x=28
x=7
Father's age=(6x-7)-1=41
.

#### Question No 19

A Math club has 25 members of which 11 are males and the rest are females. What is the ratio of males to all club members?

Solution!
Ratio between males and members.
11:25
.

#### Question No 20

The average temperature on Wednesday, Thursday and Friday was 25. The average temperature on Thursday, Friday and Saturday was 24. If the temperature on Wednesday was 30, what was the temperature on Wednesday?

Solution!
Total temperature on Wednesday, Thursday and Friday was 25 Ã—3 = 75
Total temperature on Thursday, Friday and Saturday was 24 Ã—3 = 72
So, difference b/w the temperature on Wednesday and Saturday = 3
If Wednesday temperatures = 30 ,then Saturday temperature = 30 - 2 = 27
.

#### Question No 21

A B C D E F G H I What letter is three to right of letter immediately to the left of the letter which is five to the left of H:

Solution!
No explanation available for this question..

#### Question No 22

Which one is odd one out:

Solution!
No explanation available for this question..

#### Question No 23

Which one is different from the other?

Solution!
No explanation available for this question..

#### Question No 24

Find sequence.
10889,08891,88910,_,91088.

Solution!
1 digit left shift numbers..

#### Question No 25

Find the odd man out

Solution!
No explanation available for this question..

#### Question No 26

. A man has a certain number of small boxes to pack into parcles. If he packs 3, 4, 5 or 6 in a parcel, he is left with one over; if he packs 7 in a parcle, none is left over. What is the number of boxes, he may have to pack?

Solution!
Clearly, the required number would be such that it leaves a remainder of 1 when divided by 3, 4, 5, or 6 and no remainder when divided by 7. Thus, the number must be of the form (L.C.M of 3, 4, 5, 6) x + 1 i.e., (60x + 1 ) and a multiple of 7. Clearly, for x = 5, the number is a multiple of 7. So the number is 301.
.

#### Question No 27

Police car is chasing a girl who is running at a speed of 5 m/s and the distance between them is decreasing 3m after every sec. the speed of Police car would be:

Solution!
No explanation available for this question..

#### Question No 28

The sum of odd multiples 5 between 0 to 50 is:

Solution!
No explanation available for this question..

#### Question No 29

A family consists of six members P, Q, R, X, Y and Z. Q is the son of R but R is not mother of Q. P and R are a married couple. Y is the brother of R. X is the daughter of P. Z is the brother of P. Who is the brother-in-law of R?

Solution!
Q is the son of R but R is not the mother. So, R is the father of Q. P is married to R. So, P is the wife of R and the mother of Q. X is the daughter of P and hence of R and so she is the sister of Q. Y is the brother of R and Z is the brother of P. R is the husband of P and Z is the brother of P. So, Z is the brother-in-law of R..

#### Question No 30

What comes next? A , J , X , H , U , F , ?