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1) Statement 1
Tip + tax is 20% of meal
let meal be X, now X+.2X=30
X=25
Sufficient

2) We only know that ratio of tip to Tax
insufficient
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Question Given
M+T+Ti=30
M-meal, T-tax, Ti-tip

Statement 1: The sum of the tip and the tax was 20 percent of the price of john's meal.
T+Ti=0.2M
Substituting in the question given
M+0.2M=30
M=25
SUFFICIENT

Statement 2: The ratio of the tax to the tip was 1 to 4.
T/Ti=1/4
This does not tell us about the relationship of T and Ti with M nor the value of T+Ti.
INSUFFICIENT.

CORRECT ANSWER: A
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The total amount that John paid at a certain restaurant consisted of the price of the meal, the tax, and the tip. If the total amount that John paid at the restaurant was $30, what was the price of John's meal?

(1) The sum of the tip and the tax was 20 percent of the price of john's meal.
30=price+tax+tip
30 = p+20p/100
From here P can be obtained


(2) The ratio of the tax to the tip was 1 to 4.
Here 30= P + 1x+4x
P cannot be obtained

Ans A
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OFFICIAL EXPLANATION


Let x, y, and z be the amount, in dollars, that John paid for the price, tax, and tip, respectively. Then, x + y + z = 30. Determine the value of x.

(1) It is given that y + z = 0.20x. Therefore, 30 = x + (y + z) = x + 0.2x = 1.2x, and hence x =\( \frac{30}{1.2}\) = 25; SUFFICIENT.

(2) It is given that \(​\frac{y}{z​ }\)= ​\(\frac{1}{4}\)​, or z = 4y. Therefore, 30 = x + y + z = x + y + 4y = x + 5y. If y = 1, then z = 4 and x = 25. On the other hand, if y = 2, then z = 8 and x = 20; NOT sufficient.

The correct answer is A; statement 1 alone is sufficient.
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