In 15 days, the Earth picks up 1.2 x 108 kg
of dust from the atmosphere. In how many
days will it pick up 4.8 x 108 kg of dust?
Answers
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1
Answer:
60 days.
Explanation:
UNITARY METHOD:-
1.2*108 kg in 15 days
1 kg in 15/1.2*108 days
4.8*108 kg in 15*4.8*108/1.2*108 days
=60 days
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