Month | Average Price per Dozen |
| April May June | $1.26 $1.20 $1.08 |
19. The table above shows the average (arithmetic mean) price per dozen of the large grade A eggs sold in a certain store during three successive months. If 2/3 as many dozen were sold in April as in May, and twice as many were sold in June as in April, what was the average price per dozen of the eggs sold over the three-month period?
(A) $1.08
(B) $1.10
(C) $1.14
(D) $1.16
(E) $1.18
Answer: D
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Solution:
ReplyDeleteLet the number of dozens of eggs sold in May = x
Then number of dozens of eggs sold in April = 2/3x
Then number of dozens of eggs sold in June = 4/3x
Average price of dozen of eggs = (1.26 *2/3x + 1.2*x+ 1.08 * 4/3x) ÷ (2/3x + x + 4/3x)
= (.84x + 1.2x + 1.44x) ÷ (3x)
= 3.48x ÷ 3x
= 1.16