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 ?
ANSWER :
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 ?
ANSWER :
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 = ?
ANSWER :
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 ?
ANSWER :
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 = ?
ANSWER :
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 ?
ANSWER :
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 = ?
ANSWER :
It is of the form (a + b ) followed by ( c + d )
( 2 + 6 ) ( 5 + 1 ) = 86
( 3 + 3) ( 4 + 2 ) = 66
( 9 + 0 ) ( 1 + 7 ) = 98
then ( 6 + 1 ) ( 1 + 3 ) = 74