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

Question No 1

2.5, 4, ___, 7, 8.5, 10

Solution!

Question No 2

2 + 22 + 23 + ... + 29 = ?

Select the correct answer

Solution!
This is a G.P. in which a = 2, r =22/2= 2 and n = 9.
Sn =a(rn - 1)/ (r - 1) (2 - 1)=2 x (29 - 1)/(2-1)= 2 x (512 - 1)   = 2 x 511   = 1022.
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Question No 3

What is the unit digit in 7105 ?

Select the correct answer

Solution!
Unit digit in 7105 = Unit digit in [ (74)26 x 7 ]
But, unit digit in (74)26 = 1
Unit digit in 7105 = (1 x 7) = 7
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Question No 4

14, 14, 26, 26, 38, 38, 50....?
Find next pair?

Select the correct answer

Solution!
Difference of 12 in pairs..

Question No 5

John can complete a journey in 19 hours. He travel first half of the journey at the rate of 21 kilometre per hour and second half at the rate of 24 km per hour. Find the total journey in kilometre?

Select the correct answer

Solution!
Let the total distance b x kilometre. Then,
15x=168x20
x=[(168x20)/15]=224 km.
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Question No 6

___, GMO, IPS, KSW, MVA, OYE.

Select the correct answer

Solution!
There is three different series in group.
1st letter in each group with gap of 1.
2nd letter in each group with gap of 2.
3rd letter in each group with gap of 3.
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Question No 7

A car is moving towards north. It turns at the angle of 90 degree. now its direction is:

Select the correct answer

Solution!
No explanation available for this question..

Question No 8

Centimeter is to meter as inch is to

Select the correct answer

Solution!
No explanation available for this question..

Question No 9

Average age of 11 students in a class is 10. What would be the average age if teacher's age (34) is also included:

Select the correct answer

Solution!
No explanation available for this question..

Question No 10

A person bought a pen for rupees hundred and sold it for rupees 105. What is his profit?

Solution!
C.p=100
S.p=105
Profit=105-100
=5
.

Question No 11

Which number is odd one out? 19 , 47 , 29 , 9 , 57 , 7

Select the correct answer

Solution!
No explanation available for this question..

Question No 12

25.125, 16.64, 9.27, 4.8, __?
Whatâ€™s next?

Select the correct answer

Solution!
Two different series of 5, 4, 3, 2, 1. before decimal after decimal.
Before decimal: square of numbers.
After decimal:  cubes of numbers.

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Question No 13

If KCCEG means DECK then CHESS is meaning of:

Select the correct answer

Solution!
No explanation available for this question..

Question No 14

A garden have three types of flowers rose ,Jasmine and Lily . The flowers are in the ratio of 2 to 3to 5. If the garden has 30 roses, how many flowers does it have all together?

Select the correct answer

Solution!
Ratio of flowers
Rose: Jasmine :Lily
2:3:5
If 30 roses in garden
30 / 2 = 15
2 x 15 :3 x 15:5 x 15
30 :45:75
Then total flowers are
30 + 45 + 75 = 150
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Question No 15

Son : sun : : _____ : sew

Select the correct answer

Solution!
Son is a homophone for sun , and so is a homophone gor sew..

dsfsdfr( 1â„2 )

Solution!
ththtt 1â„2 .

Question No 17

Choose the word which is different from the rest.

Select the correct answer

Solution!
No explanation available for this question..

Question No 18

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

Select the correct answer

Solution!
No explanation available for this question..

Question No 19

There are six persons A, B, C, D, E and F. C is the sister of F. B is the 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. How many male members are there in the group?

Select the correct answer

Solution!

Option (D)

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. A, the father, is male. B, the brother, is male. C, the sister, is female. D, the grandfather, is male. E, the mother, is female. F, the brother, is male. So, there are four males.

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Question No 20

2+2*2/2-2/2+2 = ?

Select the correct answer

Solution!
No explanation available for this question..

Question No 21

Find a five digit number which has no zeros nor ones in it and no digit is repeated,where:
The fourth digit is a quarter of thee total of all the digits, Second digit is twice the first digit,Third digit is the largest and last digit is the sum of the first two digits

Select the correct answer

Solution!
Remember the figure must not contain any ones or zeros.

Question No 22

Anna had $20 to spend on seven pencils. After buying then she had$10 . How much did each pencil cost?

Select the correct answer

Solution!
Coat on pencils:
Total money - left money
24-10=14
Cost on seven pencils : 14
Cost on each pencil :
14/7=2
.

Question No 23

____, DQ, HP, KO, ON, RM, VL, YK, CL.
Find the missing.

Select the correct answer

Solution!
It is Alternative series .
Difference of 2 and 3 Alternatively in
First letter in group.
2nd letter is the
reverse series of R, Q, P, O, N, M...
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Question No 24

2, 3, ___, 7, 11, 13, 17
Find the missing.

Select the correct answer

Solution!
All are prime numbers..

Question No 25

A man's age is three times his son in 10 years it will be doubled that of his son. How old is son now?

Solution!
Let's son age =x
Man's age =2x
Given that
3x+10=2(x+10)
3x+10=2x+20
x=10
.

Question No 26

W, S, Q, M, K, G... ?
Find the missing?

Select the correct answer

Solution!
Alphabets in prime number reverse series of
23, 19, 17, 13, 11....
Prime number 5 will E Alphabet.
.

Question No 27

If David says, "Peter's mother is the only daughter of my mother", how is David related to Peter?

Select the correct answer

Solution!

Option (C)

Only daughter of my mother = David Sister

David Sister is Peter's Mother

So David is maternal uncle of Peter

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Question No 28

A typist has speed of 47 WPM. How many words could he type in 0.25 hours:

Select the correct answer

Solution!
No explanation available for this question..

Question No 29

A family consists of 6 member P, Q, R, S, 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. How many female members are there in the family ?

Select the correct answer

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 sister of Q. Y is the brother of R and Z is the brother of P. There are two females only  a mother P and daughter X..

Question No 30

Bombay Express left Delhi from Bombay at 14.30 hours, travelling at a speed of 60 km per hour and Rajdhani Express left. Delhi from Bombay on the same day at 16.30 hours, travelling at the speed of 80 kilometre per hour. How far away from Delhi will the two trains meet?

Select the correct answer

Solution!
Suppose they meet x hours after 14.30 hours.
Then 60 x =80 (x-2) or x=8
Required distance=(60*8)km
=480 km.
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