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21 Oct 2019, 02:05
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
91% (01:01) correct
9%
(01:32)
wrong
based on 261
sessions
History
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At a certain refreshment stand, all hot dogs have the same price and all sodas have the same price. What is the total price of 3 hot dogs and 2 sodas at the refreshment stand?
(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs.
(2) The total price of 9 hot dogs and 6 sodas at the stand is $21.
(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs.
(2) The total price of 9 hot dogs and 6 sodas at the stand is $21.
21 Oct 2019, 02:16
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At a certain refreshment stand, all hot dogs have the same price and all sodas have the same price. What is the total price of 3 hot dogs and 2 sodas at the refreshment stand?
Let the price of hot dog be h and price of soda be s.. we are looking for 3h+2s
(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs.
5s<2h...Insufficient
(2) The total price of 9 hot dogs and 6 sodas at the stand is $21.
9h+6s=21.. The ratio of 3:2 and 9:6 is same, so divide by 3..
\(\frac{9h+6s}{3}=\frac{21}{3}....3h+2s=7\)..Sufficient
B
Let the price of hot dog be h and price of soda be s.. we are looking for 3h+2s
(1) The total price of 5 sodas at the stand is less than the total price of 2 hot dogs.
5s<2h...Insufficient
(2) The total price of 9 hot dogs and 6 sodas at the stand is $21.
9h+6s=21.. The ratio of 3:2 and 9:6 is same, so divide by 3..
\(\frac{9h+6s}{3}=\frac{21}{3}....3h+2s=7\)..Sufficient
B
21 Oct 2019, 02:57
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Statement 1 is not sufficient.
Statement 2: if we divide both sides of the equation by 3, we get the answer
9h + 6s = 21
3h + 2s = 7
=> $7
Hence, sufficient.
Answer (B)
Posted from my mobile device
Statement 2: if we divide both sides of the equation by 3, we get the answer
9h + 6s = 21
3h + 2s = 7
=> $7
Hence, sufficient.
Answer (B)
Posted from my mobile device
