Question

how to work 20+15=24 64+13=42 11+28=?

Answer 1

Answer:36

Step-by-step explanation:20+15= (2+0+1+5)*3=8*3=24

similarly, (6+4+1+3)*3=14*3=42

then,11+28= (1+1+2+8)*3= 12*3= 36

Hope This Helps

Answer 2

Question is

       20 + 15 = 24

       64 + 13 = 42

       11 + 28 = ?

Solution :

 In this type of questions, we have to find the required term or number using a method in which the previous or given terms were made.

20 + 15

  = 2 + 0 + 1 + 5 = 8

       = 8 * 3 = 24

64 + 13

  = 6 + 4 + 1 + 3 = 14

       = 14 * 3 = 42

 So, we see that the required term is going to be found by multiplying 3 with the sum of the terms of the product.

Then, 11 + 28

  = 1 + 1 + 2 + 8 = 12

       = 12 * 3 = 36

Therefore, 11 + 28 = 36