## TRICKY MATHS RIDDLES WITH ANSWERS

This blog explains about TRICKY MATHS RIDDLES WITH ANSWERS . It is explained clearly well below :

1. If 6 + 4 = 210

9 + 2 = 711

? + ? = 113

Then what is the number ?

It traces the pattern that ( a – b ) followed by (a + b )

( 6 – 4 )( 6 + 4 ) = 210

( 9 – 2 ) ( 9 + 2 ) = 711

So   ( 7 – 6 ) ( 7 + 6 ) = 113

2 . What will be the next number in the given sequence ?

0  1   3  2  6  3  9  4  12   5   ?

Let us consider the numbers to be  “ abcdefghijkl”

Here the numbers  “ a , c , e , g , i , k ” are consecutive numbers and the numbers “ b , d , f , h , j , l ” are multiples of 3 .

So the next number will be 15

3.  If   1  +  4 =  5

2  +  5  = 12

3  +  6 = 21

Then 8 + 11 = ?

It is of the form ( X * Y ) + X

( 1  * 4 ) + 1 = 5

(  2 * 5 ) + 2 = 12

( 3 * 6  ) + 3  = 21

So ,       ( 8 * 11 ) + 8 =  96

4 . What will be the next number in the sequence ?

70 68 64 58 50 ?

It follows the pattern that the difference between the consecutive numbers are multiples of 2

70 – 68 = 2 ,

68 – 64 = 4 ,

64 – 58 = 6 ,

58 – 50 = 8 ,

50 – x = 10

So x = 40

5. If  1 1 1 1 = R

2 2 2 2 = T

3 3 3 3 =  E

Then 4 4 4 4 = ?

The sum of 1 1 1 1 = 4 (FOUR ) = R

2 2 2 2 = 8 ( EIGHT ) = T

3 3 3 3 = 12 ( TWELVE ) = E

4 4 4 4 = 16 (SIXTEEN ) = N

6. If 2 x – 4 / y = 10

2 x + 2 / y = 4

Then what will be the value of x and y ?

Solution :

Multiplying by  y we get ,

2 x y – 4 = 10 y

2 x y + 2 =  4 y

( – 6  ) = 6 y

• Y = -1

Then 2 x(- 1) – 4 = 10(-1)

( – 2 x ) =   4 – 10

– 2 x = – 6

X = 3

Thus the values of x and y are 3 and -1

7 . Using only addition how will add eight 8 ‘s and you get 1000 ?

888

88

8

8

( + )          8

__________

1000

8 . It is a 9 letter word 123456789

A ) If you lose it you will die

B ) If you have 234 then you can 1234

C ) 56 is a disease

D ) 89 indicates the exact time and location

E ) 5 and 9 are the same alphabets , 2 and 7 are same and 3 and 8 are the same alphabets .

ANSWER : A ) HEARTBEAT

B) EAR => HEAR

C) TB

D) AT

E )  5 = 9 = T  ,  2 = 7 = E  and  3 = 8 = A

9 . It is a 6 letter word

A ) First three letters is the largest thing in the world

B ) 234 indicates an human organ

C ) 345 indicates a part of a circle

D ) The whole word plays  the vital key role in the internet today

ANSWER :  A ) SEA

B ) EAR

C ) ARC

D ) SEARCH

10 . If  2651 = 86

3342 = 66

9017 = 98

then   6113 = ?