Question

4*5=29 , 6*7=55, 1*4=? options are a)19 b)26 c)17. d) 12

Answer 1

Concept:

The trick applied here is, $(second number)^{2} + first number$

Given:

$4*5=29 \\ 6*7=55$

To find:

$1*4=?$

Solution:

The trick applied here is $(second number)^{2} + first number$

So, we will first do the square of the second number, and add the first number to it, that is,

$a. 4*5\\5^{2} +4\\95+4\\29$

$b. 6*7\\7^{2}+6\\ 49+6\\55$

$c. 1*4\\4^{2}+1\\ 16+1\\17$

∴Option c is the correct answer to this question because the square of 4 is 16 and if we add 1 to it we get 17.

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