Question

What number is 15% smaller then 640

Answer 1

Answer:

(c) Crust and Upper Mantle

(d) Mantle and Crust

Answer 2

Answer:

544

Step-by-step explanation:

First find 15% of 640, then subtract the 15% from 640 and you'll find your answer.

1. 15% of 640 = 15 x 640 = 9600

                      = 100 x 1 = 100

                      = 9600/100 = 96

∴ 15% of 640 = 96

2. 15% smaller than 640 = 640 - 15%

                                        = 640 - 96

                                        = 544