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

Daily Test



Question No 1

What is the difference between the smallest 4-digit number and the largest 3-digit number?

Select the correct answer


Solution!
The smallest 4-digit number is 1000. The largest 3-digit number is 999. So their difference is equal to 1000 − 999 = 1.
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Question No 2

Choose or find odd number
21 , 39 , 51 , 63 , 83

Select the correct answer


Solution!
 83 is the only prime number in the group.
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Question No 3

What comes next in the series 2 , 4 , 6 , 10 , 14 , 20 , ?

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Solution!
No explanation available for this question..

Question No 4

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. MHZ, NIW, OKT, PNQ, ?

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Solution!
The first letters of the terms are consecutive letters. The third letter of each term is moved three steps backward to obtain the third letter of the successive term. The middle letters of the first, second, third and fourth terms are moved one, two, three and four steps forward respectively to obtain the middle letter of the successive terms.
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Question No 5

Choose or find odd letter group
DAH , IFM , ROV , QNT , SPW

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Solution!

       In all other groups, first letter is 3 letters ahead of the second and third letter is 4 letters ahead of the first.
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Question No 6

A train of length 100m crosses a bridge with 20m/s in 15 seconds. What would be length of bridge?

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Solution!
No explanation available for this question..

Question No 7

In following question, a number series is given with one term missing. Choose correct alternative
2, 6, 12, 20, 30, 42, 56, x

Select the correct answer


Solution!
The sequence is 1 * 2 , 2 * 3, 3 * 4, 4 * 5.
Next number = 8 * 9 = 72.

Question No 8

0, 3, 10, ??, 36, 55, 78...

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Solution!
No explanation available for this question..

Question No 9

How old  am I if 500 reduced by 5 times my age is 200?

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Solution!
500 - 5 x 8 = 200
5 age = 500 - 200
Age = 300/5 
Age = 60
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Question No 10

These are six persons A ,B, C, D , E,and F  is a sister of  F. B is a  brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother?

Select the correct answer


Solution!
D is father of A and grandfather of F. So,  A is father of F. Thus, D and A are the two fathers. C is the sister of F. So, C is the daughter of A . Since there is only one mother, it is  evident that  E is the wife of A and hence the mother of C and C and F. So, B is brother of A . There are three brothers. So, F is the brother of C. Clearly, E is the mother..

Question No 11

In following questions, one term in number series is incorrect.
Find out the incorrect number
6, 14, 30, 64, 126

Select the correct answer


Solution!
Each term is multiplied by 2 and then increased by 2 to obtain the next term.
So, 64 is wrong and must be replaced by (30 * 2 + 2) i.e. 62..

Question No 12

Pointing to a man in photograph, a woman said, His brother father in the only son of my grandfather.  How is the woman related to the man in the photograph?

Select the correct answer


Solution!
Blood relation analysis.
 Only son of women grandfather= woman father
 Man's brother father =man father 
so woman is man's sister
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Question No 13

5/2, 2, 3/2, 1, 1/2, ___, -1/2
Find the missing.

Select the correct answer


Solution!
Difference of 1/2 in series.
1/2 - 1/2= 0
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Question No 14

PBC, QDE, RFG, SHI....?
What's next?

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Solution!
It is two Alphabetical series here.
First series is the first letter
 only in sequence of P,Q,R,S,T,U,V...
2nd series is BC, DE, FG, HI, JK, LM...
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Question No 15

The difference of the squares of two consecutive odd integers is divisible by which of the following integers ?

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Solution!
Let the two consecutive odd integers be (2n + 1) and (2n + 3). Then,
(2n + 3)2 - (2n + 1)2 = (2n + 3 + 2n + 1) (2n + 3 - 2n - 1)
    = (4n + 4) x 2
     = 8(n + 1), which is divisible by 8.
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Question No 16

The ratio of two brothers John and Harry is 4 / 5. However if the age of John before 10 years and that of Harry after 10 years then the original ratio is reversed. What is the age of John?

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Solution!
John age is = a and harry= b
given that a /b = 5 / 4
4a= 5 b
 4a - 5b= 0.... Equation 1
and also given that a - 10 / b + 10 = 4 / 5
5 a- 50 = 4 b + 40
5a - 4 b = 90.... Equation 2
 by solving both equation
 a = 50
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Question No 17

20 years ago David age was 1/3 times what it is now . Find the present age of David?

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Solution!
Let David age = x
Given that 
x-20=1/3x
3x-60=x
3x-x=60
2x=60
X=30


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Question No 18

Which word means opposite of prompt?

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Solution!
Prompt means punctual; trady means late..

Question No 19

4, 7, 11, 18, x, y, 76, 123... Sum of x and y:

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Solution!
No explanation available for this question..

Question No 20

The sum of age 5 children born at the interval of 2 year each is 40 year. Find out the age of eldest child?

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Solution!
 let's age of youngest child = x
Then the age of 5 children can be written as x,( x + 2) ,(X + 4 ),(x + 6) and( X + 8).
Age of elders child = X + 8
Then ,
X + (X + 2 )+ (X+ 4) +( X + 6) + (X + 8) = 40
5 X + 20 = 40
5 X = 40 - 20
X = 20 / 5
X = 4
Age of elders child = X + 8
4 + 8 = 12.
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Question No 21

The theft is discovered at 3:30 a.m and police run behind him at a speed of 140 km per hour. Find at what time thief will be caught?

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Solution!
Thief cover distance in 1 hour= 100 Km
Time taken by police to caught him 100 / 140 -100=2.5 hrs
3:30+2.5=6:a.m
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Question No 22

24, 28, 44, 32, 36, 44, 40...?
What's next?

Select the correct answer


Solution!
Alternative series of difference 4 and every 
3rd difference position number is 44.
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Question No 23

A 140m long train is moving at a speed of 20 m/s. In how many seconds will it cross a pole?

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Solution!
No explanation available for this question..

Question No 24

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. C4X, F9U, 116R, ?

Select the correct answer


Solution!
The first letter of each term is moved three steps forward and the last letter is moved three steps backward to obtain the corresponding letters of the next term.
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Question No 25

Find the odd man out

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Solution!
No explanation available for this question..

Question No 26

Choose the word that has same or nearly the same meaning of mess?

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Solution!
A mesa and a plateau are both high tablelands; flat topped with preciptious sides..

Question No 27

What comes next in the series 11 , 13 , 17 , 19 , ?

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Solution!
No explanation available for this question..

Question No 28

If 60% of3/5of a number is 36, then the number is:

Select the correct answer


Solution!
Let the number be x. Then
60% of 3/5of x = 36
60/100 x3/5x x = 36
x =36 x25/9= 100
Required number = 100.
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Question No 29

A farmer bought a harvesstor for RS. 1500 and sold it for RS.1550. 
Find its profit percentage?

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Solution!
Profit=1550-1500
=50
Profit percentage=50/1500*100=3.3%
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Question No 30

A clock seen through a mirror reads quarter past three. What is the correct time?

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Solution!
No explanation available for this question..
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