Question

2*3*5= 10
7*4*8=36
6*5*4=?
(a) 85 (b) 81 (c) 87 (d) 93
explain it ​

Answer 1

Given :  2*3*5= 10 7*4*8=36 6*5*4=?

To find : number at place of question mark

Solution:

2*3*5= 10 7*4*8=36 6*5*4=?

2 * 3 * 5

= (2 * 5)  +  3  

= 13

1² + 3²  = 1  + 9  = 10

7 * 4 * 8

= (7 * 8)  +  4

= 60

6² + 0²  =36  + 0  = 36

6 * 5 * 4

= (6 * 4)  +  5

= 29

2² + 9²  = 4  + 8  = 85

Logic is  

a*b*c  = d

=> (a * c ) + b   =  mn

m² + n² = d

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