Saved Bookmarks
| 1. |
In 15 days, the earth picks up 1.2 x 108 kg of dust from the atmosphere. In how many days it will pick up 4.8 x 108 kg of dust? |
||||||
|
Answer» Let the number of days is x
\(\frac{1.2\times 10^8}{15}\) = \(\frac{4.8\times 10^8}{x}\) On cross multiplication, we get 1.2 x 108 x x = 15 x 4.8 x 108 x = \(\frac{15\times 4.8\times 10^8}{1.2 \times 10^8}\) = 60 Therefore the number of days required to pick up the dust is 60 days |
|||||||