A grocery store bought some mangoes at a rate of 5 for a dollar. They were separated into two stacks, one of which was sold at a rate of 3 for a dollar and the other at a rate of for a dollar. What was the ratio of the number of mangoes in the two stacks if the store broke even after having sold all of its mangoes? Choose the most appropriate option
A) 1:4	B) 16:9	C) 2:3	D) 1:2	E) 2:5
The cost price of a mango = 1/5 dollars.   The selling price of a mango from the first stack = 1/3 dollars --&gt; the profit from one mango = 1/3 - 1/5 = 2/15 = 4/30 dollars.   The selling price of a mango from the second stack = 1/8 dollars --&gt; the loss from one mango = 1/5 - 1/8 = 3/40   dollars.   The profit from one mango from the first stack is 4 times the loss from one mango from the second stack. the ratio is   4/30*40/3 =16/9   16:9
<result>B</result>
A grocery store bought some mangoes at a rate of 5 for a dollar. They were separated into two stacks, one of which was sold at a rate of 3 for a dollar and the other at a rate of for a dollar. What was the ratio of the number of mangoes in the two stacks if the store broke even after having sold all of its mangoes?