Question

You spend 21 dollars on vegetables at the store. You buy carrots, onions and celery. The celery cost half the cost of the onions. The onions costs half the cost of the carrots. How much did the onions cost?

Answer 1

Answer:

$6

Step-by-step explanation:

Let the price of the carrots be $ x.

Then, according to the question,

Price of onions = $ x/2

Price of celery = $ 1/2(x/2) = $ x/4

So,

x + x/2 + x/4 = 21

or, (4x + 2x + x) = 21×4

or, 7x = 21×4

or, x = 3×4 = 12

Therefore, the carrots cost $ 12.

Accordingly,

Cost of onions = 12/2 = $6.