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

#### Question No 1

There are 512 boys in a school in 2010. After each year, half of boys leave the school. In 2015, how many boys remain in school

Solution!
No explanation available for this question..

#### Question No 2

From 1 to 9, the sum of three distinct numbers is 25. What would be the smallest number:

Solution!
No explanation available for this question..

#### Question No 3

In following question, a number series is given with one term missing. Choose correct alternative
4, 8, 28, 80, 244, x

Solution!
The patter is alternate 3n+1 and 3n-1.
So following above formula we get:
31 + 1 =3+1=4
32 - 1 =9-1=8
33 + 1 =27+1=28
34 - 1 =81-1=80
35 + 1 =243+1=244
So last no 36-1=729-1=728.

#### Question No 4

1.1, 4.8, 9.27, ___, 25.125?
Find the missing.

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

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#### Question No 5

Carpenter is to wood as tailor is to

Solution!
No explanation available for this question..

#### Question No 6

B is to Y as D is to

Solution!
No explanation available for this question..

#### Question No 7

Game: series::___: word

Solution!
A game is a part of a series and a syllable is a part of a word.

#### Question No 8

wed :_______:: team : meet

Solution!
Wed is a palindrome for dew, and team is a palindrome for meet.

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#### Question No 9

All the six members of a family A, B, C, D, E and F are travelling together. B is the son of C but C is not the mother of B, A and C are a married couple. E is the brother of C. D is the daughter of A. F is the brother of B. How many male members are there in the family?

Solution!

Option: (D)

B is the son of C but C is not the mother of B means C is the father of B. A is married to C means A is the mother of B. F is brother of B means F is son of A and C. D is daughter of A means D is daughter A and C. A is the mother and hence female. B is the son and hence male. C is the husband and hence male. D is the daughter and hence female. E is the brother and hence male. F is the son and hence male. So , there are four males.

.

#### Question No 10

Three persons are walking from a place A to another place B their speeds are in ratio of 4 :3 :5. The time ratio to reach B by these person will be:

Solution!
Ratio of speed= 4:3:5
Therefore ratios of time taken= (1/4):(1/3):(1/5)=15:20:12
.

#### Question No 11

Which word means the opposite of mandatory?

Solution!
Mandatory means containing a command, optional means having a choice.

#### Question No 12

Pound : United kingdom : : _______ : Costa Rica

Solution!
The pound is the unit of currenty of the united kingdom, and the colon is the unit of currency in Costa Rica..

#### Question No 13

\$70000 is divided into 2 brothers and 3 sisters in ratio 2:2:1:1:1. What would be the amount given to all sisters:

Solution!
No explanation available for this question..

#### Question No 14

The temperature in 0 F on 20 days during the month of June
was as follows:
70 F, 76 F, 76 F, 74 F, 70 F, 70 F, 72 F, 74 F, 80 F,
74F,74F,78F,76F,78 F,76F,74F,78F,80F,76F
What is the mode of the temperature for the month of June?

Solution!
76 and 78 is the highest occurrence in series..

#### Question No 15

What comes next?
5, 17, 37, 65, ___?

Solution!
2^2+1, 4^2+1, 6^2+1, 8^2+1â€¦. Is given series.

.

#### Question No 16

A family consists of 6 members P, Q, R, S, T, and U  . There are two married couples . Q is a doctor and the father of T ,U is grandfather of R and is a contractor . s is grandmother of T and is a housewife. There is one doctor, one contractor -one house wife and two students in the family.
Which of the following is definitely a group of male members?

Solution!
Q the doctor, is the father of T. S, the house wife, is the grandmother of T and hence the mother of Q. Since there are only two married couples one being that of Q, the grandfather of R i. e, U must be married to S. Thus, R and T will be both children of Q and these must be the student. So P, who remains, Shell be the wife of  Q and she alone can be the nurse. Thus,  U must be the contractor. Clearly, for definite the males are  Q, the father and  U, the grandfather..

#### Question No 17

There are two trains move towards Each Other 50 km per hour and 60 km per hour respectively. When they meet it is noted that faster train cover 50 km more than the other. Find the total distance travelled by them?

Solution!
First train cover 10 kilometre more in every hour so  for 50 km it has to run in 5 hour.
D=(50+60)*5=550km
.

#### Question No 18

n is a whole number which when divided by 4 gives 3 as remainder. What will be the remainder when 2n is divided by 4 ?

Solution!
Let n = 4q + 3. Then 2n = 8q + 6   = 4(2q + 1 ) + 2.
Thus, when 2n is divided by 4, the remainder is 2.
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#### Question No 19

___, KOJ, JOI, JOL, HOK
Find the missing.

Solution!
There are two different series in group middle one is contant.
1st letter is the reverse series of M, L, K, J, I...
3rd letter is H-1=G, G+2=J, J-1=I, I+2=L, L-1=K...
.

#### Question No 20

Idioms and phrases.
A bottleneck

Solution!
Discription is not available for this question..

#### Question No 21

287 x 287 + 269 x 269 - 2 x 287 x 269 = ?

Solution!
Given Exp.= a2 + b2 - 2ab, where a = 287 and b = 269
= (a - b)2 = (287 - 269)2
= (182)= 324
.

#### Question No 22

PRT, VXZ, BDF, HJI...?
What's next?

Solution!
There ia a gap of one letter in every letter of the group. Moreover, every second group of the series starts after a gap of one letter, i.e,
after PRT, we see VXZ.
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#### Question No 23

The speed of swimmer along the flow of river is 44 km and against the flow of river is 20 km. What would be the speed of swimmer  in still water?

Solution!
Speed of the swimmer=1(upward stream+ downward stream)/2
=44+20/2=64/2=32
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#### Question No 24

Choose or find odd number pair
(3 - 5) , (5 - 3) , (6 - 2) , (7 - 3)

Solution!
In all other pairs, the sum of two numbers is 8.
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#### Question No 25

In the class of 10 boys and 5 girls boys have 4 balls each and girls have 1 ball each what will be the average number of balls in class?

Solution!
={( number of boys X number of balls)+( number of girls X number of balls)}/ total students
={(10Ã—4)+(5Ã—1)}/10+5
=(40+5)/15
= 3 is the average number of balls in class.
.

#### Question No 26

A movie theatre sold 5 times as many children's tickets as adult tickets to an afternoon show. If 132 tickets were sold in all, how many were children's tickets?

Solution!
Children ticket: 5 x
5 x + X = 132
6 X = 132
x = 132/6
X = 22
Children tickets: 5 x
5(22 )= 110
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#### Question No 27

. In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

CAT, FDW, IGZ, ?

Solution!
All the letters of each term are moved three steps forward to obtain the corresponding letters of the next term..

#### Question No 28

What is next leap year after 2015?

Solution!
No explanation available for this question..

#### Question No 29

Choose or find odd number
3759 , 2936 , 6927 , 4836 , 5814

Solution!
In all other numbers, the sum of second and last digits is twice the sum of first and third digits.
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#### Question No 30

10â„5 , 10â„100 , 1000â„15 ,  20â„10000 ... What's next?