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

#### Question No 1

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

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

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#### Question No 2

In following number series, two terms have been put within brackets. Choose the appropriate option
Choose the appropriate option 3, 10, 29, (66), (127), 218

Solution!
The sequence is 13 + 2, 23 + 2, 33 + 2, 43 + 2, 53 + 2, 63 + 2.
Clearly, both the terms 66 and 127 are correct..

#### Question No 3

In following alphabet series , one term missing as shown by question mark . Choose missing term from options.
A, Z, X, B, V, T, C, R, ?, ?

Solution!
The first, fourth and seventh letters are in alphabetical order. So, tenth letter would be the letter after C  i.e. D. Also, the second and third letters are alternate and in reverse order and so are the fifth and sixth letters and the eighth and ninth letters.
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#### Question No 4

Look at this series: 2, 4, 6, 8, 10, . . .
What number should come next?

Solution!
This is a simple addition series.
Each number increases by 2.
Like -
First number is 2
Second number = 2 + 2 =4
Third number = 4 + 2 = 6
Fourth number = 6 + 2 = 8
Fifth number = 8 + 2 = 10 and
Sixth number = 10 + 2 = 12
Hence, The answer is (b) 12..

#### Question No 5

Intelligence to Intelligent as money is to

Solution!
No explanation available for this question..

#### Question No 6

What comes next in the series 11/71 , 22/75 , 33/79 , ?

Solution!
No explanation available for this question..

#### Question No 7

____:arm::column: ceiling

Solution!
A sling is used to an arm and a column is used to support a ceiling..

#### Question No 8

What comes next in the series 10 , 19 , 28 , 37 , ?

Solution!
No explanation available for this question..

#### Question No 9

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. DEF, HIJ, MNO, ?

Solution!
The letters in each term are consecutive. There is a gap of one letter between the last letter of the first term and the first letter of the second term and a gap of two letters between the last letter of the second term and the first letter of third term. So, there would be a gap of three letters between the last letter of the third term and the first letter of the fourth term.
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#### Question No 10

In following questions, one term in number series is incorrect.
Find out the incorrect number 10, 14, 28, 32, 64, 68, 132

Solution!
Alternately, the numbers are increased by four and doubled to get the next number>
Thus, 10 + 4 = 14;
14 * 2 = 28;
28 + 4 = 32;
32 * 2 =64 and so on.
So, 132 is wrong and must be replaced by (68 * 2) i.e. 136..

#### Question No 11

How many terms are there in the series 201, 208, 215, ..., 369?

Solution!
(Use Arithmetic Progression)
The given series is an A.P. in which a = 201 and d = 7.
Let the number of terms be n.
Then, 369 = 201 + (n - 1) x 7 or n = 25.

#### Question No 12

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options.   J2Z, K4X, 17V, ?, H16R, M22P

Solution!
The first letters in odd numbered terms from series J, I, H and in even numbered terms from the series K, L, M. The sequence followed by the numbers is + 2, + 3, + 4, + 5, + 6. The third letter of each term is moved two steps backward to obtain the third letter of the next term.
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#### Question No 13

3,33,5,30,7,27,9,_,11,21,13,18.
Find missing number?

Solution!
Two alternative series
Even position:33,30,27,24...subtraction of 3.
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#### Question No 14

Sandeep can complete a work in 10 days. Kumar can complete same work in 5 days. How many days are required to complete that work if they work together?

Solution!
No explanation available for this question..

#### Question No 15

Which number is odd one out? 49 , 19 , 81 , 9 , 25 , 20

Solution!
No explanation available for this question..

#### Question No 16

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
ba _ b _ aabb _ a _ _ a _ bb

Solution!
The series is baab / baab / baab / baab / b. Thus, the pattern baab is repeaated
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#### Question No 17

If average of 5, 10, 20, x is 15. What is x?

Solution!
No explanation available for this question..

#### Question No 18

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

Solution!
Profit=1550-1500
=50
Profit percentage=50/1500*100=3.3%
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#### Question No 19

What is the unit digit in(795 - 358)?

Solution!
Unit digit in 795 = Unit digit in [(74)23 x 73]
= Unit digit in [(Unit digit in(2401))23 x (343)]
= Unit digit in (123 x 343)
= Unit digit in (343)
= 3
Unit digit in 358 = Unit digit in [(34)14 x 32]
= Unit digit in [Unit digit in (81)14 x 32]
= Unit digit in [(1)14 x 32]
= Unit digit in (1 x 9)
= Unit digit in (9)
= 9
Unit digit in (795 - 358) = Unit digit in (343 - 9) = Unit digit in (334) = 4.
So, Option B is the answer.
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#### Question No 20

A boy is walking with speed 1.5m/s. he covers 12 m in _____ seconds:

Solution!
No explanation available for this question..

#### Question No 21

_____:water::tree:sap

Solution!
A hydrant is a source of water and a tree is a source of sap..

#### Question No 22

Her_______into mathematical concepts was evident when she correctly analyzed a challenge question.

Solution!
Insight is correct..

#### Question No 23

The sum of even numbers between 1 and 31 is:

Solution!
Let Sn = (2 + 4 + 6 + ... + 30). This is an A.P. in which a = 2, d = 2 and l = 30
Let the number of terms be n. Then,
a + (n - 1)d = 30
2 + (n - 1) x 2 = 30
n = 15.
Sn =n/2(a + l)=15/2x (2 + 30) = (15 x 16) = 240.
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#### Question No 24

If a boat travels with speed 10 kilometre per hour in still water and speed of stream is 5 kilometre per hour what would be the time taken by boat to go 60 km downstream?

Solution!
Thus, downstream speed=(x+y)km/he=10+5=15 km/hr
We have,
Time=distance/speed
Time taken by a boat to travel 60 km downstream will be equal to the ratio of distancees travel to downstream speed.
Time taken by a boat= 60/15=4 hr
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#### Question No 25

What Is 12 Squared?

Solution!
No explanation available for this question..

#### Question No 26

. 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 27

Choose or find odd pair of words
(Volume : Litre), (Time : Second), (Length : Metre), (Resistance : Ohm), (Pressure : Barometer)

Solution!
In all other pairs, second is the unit to measure the first. On the other hand, barometer is an instrument.

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#### Question No 28

Which of the following numbers is divisible by each one of 3, 7, 9 and 11 ?

Solution!
639 is not divisible by 7
2079 is divisible by each of 3, 7, 9, 11.
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#### Question No 29

2, 7, 15, 20, 28, 33, 41, ___, 54, 59.
Find the missing.

Solution!
It is Alternative series with addition of 5 and 8..

#### Question No 30

She is daughter of my only son's brother. She is my _____: