Question

in 8days the earth picks up6.4×10^7 kg dust from the atmosphere how much will it picks up in 15 days

Answer 1

In 8 days -- 6.4×10^7
then in 1 day it picks (6.4×10^7)/8=0.8×10^7=8×10^6
now it will pick
= 15×8×10^6 kg dust in 15 days
= 120 ×10^6
=12×10^7

Answer 2

Here is your answer

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