Question

Mr mustard bought a bag of citrus tree fertilizer. He used 1/5 of the bag for his orange tree and 2/3 of the bag for his lemon tree. About how much of the fertilizer does he have left?A. 0.5 B. 0.8 C. 0 D. 0.1

Answer 1

Problem

Mr mustard bought a bag of citrus tree fertilizer. He used 1/5 of the bag for his orange tree and 2/3 of the bag for his lemon tree. About how much of the fertilizer does he have left?

Solution

For this problem we know that the total bag represent 1 and since he used 1/5 for the orange tree and 2/3 for the lemon tree we can do the following operation to find the remaining space:

`1-(1)/(5)-(2)/(3)`

And after solve the operation we got:

`(4)/(5)-(2)/(3)=(2)/(15)`

And if we convert to decimals we got 2/15= 0.133

Then the best approximation for this case would be:

D. 0.1