Question

20+3=15, 15+4=30 12+6=?? options a 27, b 60, c 9, d 36

Answer 1

Answer:

Step-by-step explanation:

=>20+3=15

(2+0+3)5 =15

=>15+4=30

(1+5+4)3=30

=>12+6= ?

(1+2+6)3=27

Ans.=27

Answer 2

Concept

Mathematical aptitude refers to an individual capacity to perform mathematical operations.

Given

20 + 3 = 15

15 + 4 = 30

Find

12 + 6 =

Solution

Logic : Sum of all digits multiplied by 3

20 + 3 = 15

( 2 + 0 + 3 ) * 3 = 15

15 + 4 = 30

( 1 + 5 + 4 ) * 3 = 30

So

12 + 6

= ( 1 + 2 + 6 ) * 3

= 27

20 + 3 = 15, 15 + 4 = 30, 12 + 6 = 27 , Option A) 27 is correct

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