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

#### Question No 1

What comes next in the series 2 , 4 , 16 , ?

Solution!
No explanation available for this question..

#### Question No 2

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

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

#### Question No 3

If 9, 18, 36, 72,... is a sequence. Then 9(2^n) will be its term:

Solution!
No explanation available for this question..

#### Question No 4

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

Solution!
The smallest 4-digit number is 1000. The largest 3-digit number is 999. So their difference is equal to 1000 âˆ’ 999 = 1.
.

#### Question No 5

Two sisters Sonia and Paige. Sonia is 14 years older than Paige. Eight years from now the sum of their ages will 50. Find the age of elder sister?

Solution!
1st condition:
S+16=P
2nd condition:
S+6+P+6=50
2P=20
P=10
S=10+14=24
.

#### Question No 6

33, 11, 30, 10, 27, 9, 24, 8, 21..?
What is next number?

Solution!
Odd position numbers are divisible by 3 and give even position numbers.
33/3=11, 30/3=10, 24/3=8â€¦21/3=7.
.

#### Question No 7

5, 5, ___, 30, 120, 600
What's next?

Solution!
Given series is 5x1=5, 5x2=10, 10x3=30, 30x40=120....is given series..

#### Question No 8

2, 3.5, 5, 6.5, 8...?
What's next?

Solution!

#### Question No 9

To train starting at the same time from two station to 50 km apart and going in opposite directions cross each other at a distance of 170 km from one to two of the station. What is the ratio of their speeds?

Solution!
In same time to cover 170 km at a kilometre respectively.
For the same time speed and distance is inversely proportional.
Suresh of the speed=17:80=17:8
.

#### Question No 10

the ages of two person differ by 12 years. 6 years ago the elder one was 3 years as old as younger one. What is the present age of elder person ?

Solution!
Let age of elder person=x
Age of younger person =x-12
(x-6)=3(x-12-6)
(x-6)=3x-54
-6+54=3x-x
48=2x
x=48/2
24
.

#### Question No 11

Find odd one out:

Solution!
No explanation available for this question..

#### Question No 12

Determine if the ratio 2:5 is equal to?

Solution!
2Ã—4:5Ã—4
8:20
only 8:20 is correct option and equal to 2:3
.

#### Question No 13

Choose or find odd number pair
(45 - 27) , (30 - 18) , (20 - 10) , (15 - 12)

Solution!
In all other pairs, the two number have 3 as the common factor.
.

#### Question No 14

Average marks of 36 students are 92.5 and of 12 students are 95. What will be the average of all students:

Solution!
No explanation available for this question..

#### Question No 15

Two bus tickets from city A to B and three tickets from city A to C cost Rs. 77 but three tickets from city A to B and two tickets from city A to C cost Rs. 73. What are the fares for cities B and C from A ?

Solution!
Let Rs. x be the fare of city B from city A and Rs. y be the fare of city C from city A.
Then, 2x + 3y = 77 ...(i) and
3x + 2y = 73 ...(ii)
Multiplying (i) by 3 and (ii) by 2 and subtracting, we get: 5y = 85 or y = 17.
Putting y = 17 in (i), we get: x = 13.
.

#### Question No 16

By selling an article for \$50 shopkeeper earns 15% profit. What was the cost price of the article?

Solution!
Let the cost Price of the article be x
15% of x is =15x/100=3x/20
50-(3x/20)=x
1000-3x=20x
1000=20x+3x
1000=23x
1000/23=x
X=43
.

#### Question No 17

A man buys a with mirror for RS. 150 and sold it at a profit of 15%. What is the sale price of the bicycle?

Solution!
S.p= 85% of  150
=85/100*150
=127.5
.

#### Question No 18

Idiom and phrases
At arm's length

Solution!

#### Question No 19

Jenny age after 12 years will be 3 times her age 10 years back, what is the present age of jenny?

Solution!
X + 12 = 3 (x -10 )
2 x = 42
x = 21
.

#### Question No 20

The sum of Tony and Teddy age is thrice their mother age . Tony is two years younger than Teddy if the age of mother is 42 .  Find the difference between mother and younger son.

Solution!
Teddy=x elder son
Tony=x-2 younger son
Given condition
3(Tony+Teddy)=Mother
3(x-2+x)=42
6x-6=42
6x=48
X=8
Tony = 6
Teddy=8
.

#### Question No 21

27, 64, 121, 125, 216, 343....
Which one is odd?

Solution!
All the numbers are cube of numbers except 121..

#### Question No 22

70.36, 80.42, 90.48, ___, 110.60?
Find the missing.

Solution!
Two different series before decimal after decimal.
Before decimal: difference of 10
After decimal:  difference of 6

.

#### Question No 23

-2+2-2+2+1+1-1 = ?

Solution!
No explanation available for this question..

#### Question No 24

Find the odd man out.

Solution!
No explanation available for this question..

#### Question No 25

____:nine:: pentagon:five

Solution!
A nanogo  is a polygon with nine sides and a pentagon is a polygon with five sides..

#### Question No 26

1+2+4+8+...+32 =

Solution!
No explanation available for this question..

#### Question No 27

The sum of five consecutive numbers is 100. What are the smallest of these numbers?

Solution!
Let,s   numbers  are:
x, x+1, x+2, x+3, x+4
then
x+x+1+x+2+x+3+x+4=100
5x +10 = 100
5x=100-10
X=90/5
X=18
.

#### Question No 28

Whats next?
26â„24 , 27â„23 , 29â„21 ... 41â„9 ?

Solution!
In numerator addition and in denominator subtraction of 1, 2, 4, 8.... series.
29+4/21-4= 33/17
.

#### Question No 29

There are 6 persons A B C D E and F. C is the sister of F.B  is the brother of E' 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 E' husband?

Solution!
D is father of A and grandfather of F. So,  A is father of F. Thus, D andbA 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, A  is E's husband..

#### Question No 30

my sister's son is the son of your fathers only son. How am I related to you?