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At a certain restaurant, a meal cost $42, and there was no tax. If the

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At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 12 Oct 2017, 22:17
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (01:14) correct 7% (01:23) wrong based on 45 sessions

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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 13 Oct 2017, 01:25
meal cost=42
range of tip = from 15% of 42 to 20% of 42 = 6.3 to 8.4

So range of amount paid= 42+Tip= 48.3 to 50.4 ::: That is option E

Hope this helps..!!
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At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 13 Oct 2017, 03:19
Bunuel wrote:
At a certain restaurant, a meal cost $42, and there was no tax. If the tip was more than 15 percent but less than 20 percent of the cost of the meal, then the total amount paid must have been between

(A) $42 and $45
(B) $45 and $46
(C) $46 and $47
(D) $47 and $48
(E) $48 and $51

The tip is in addition to the cost of the meal.

Calculate a 15 percent tip.
$42 * 1.15 = $48.30

The tip is more than that.

You have just eliminated answers A, B, C, and D.

The ranges are in ascending order. The highest amount in those four answers is the right hand side of D.

The higher end of D is not greater than 1.15($42) = $48.30.

The Answer is E.

I did not check, but if you wanted to, the total amount paid must be:

1.15($42) < x < 1.20($42)

$48.30 < x < $50.40

Answer E

Bunuel - I think you might have listed this question twice in the 500-level list. I didn't see the other one until just now. Here is the link to what I think is a duplicate
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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 13 Oct 2017, 08:07
Here, Given that,
meal cost=42
range of tip = from 15% of 42 to 20% of 42 = 6.3 to 8.4

So range of amount paid= 42+Tip= 48.3 to 50.4
That is option E
Senior SC Moderator
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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 14 Oct 2017, 13:23
Bunuel wrote:
At a certain restaurant, a meal cost $42, and there was no tax. If the tip was more than 15 percent but less than 20 percent of the cost of the meal, then the total amount paid must have been between

(A) $42 and $45
(B) $45 and $46
(C) $46 and $47
(D) $47 and $48
(E) $48 and $51

You can eliminate four answers in about 10 seconds.

Think about what a 15 percent tip would be. Ten percent = 4.20, 5 percent = 2.10, added is more than $6.

That should signal to calculate just a 15 percent tip:

$42 * 1.15 = $48.30

The tip is more than that.

Answers A, B, C, and D are eliminated.

The ranges are in ascending order. The highest amount in those four answers is the right hand side of D.

The higher end of D is not greater than 1.15($42) = $48.30.

Only Answer E's lower range value fits.

Answer E

I did not check, but if you wanted to, the total amount paid must be:

$48.30 < x < $50.40
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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 16 Oct 2017, 16:14
Bunuel wrote:
At a certain restaurant, a meal cost $42, and there was no tax. If the tip was more than 15 percent but less than 20 percent of the cost of the meal, then the total amount paid must have been between

(A) $42 and $45
(B) $45 and $46
(C) $46 and $47
(D) $47 and $48
(E) $48 and $51


If the tip was 15%, then the total amount, including the tip, is 1.15(42) = $48.30.

If the tip was 20%, then the total amount, including the tip, is 1.2(42) = $50.40.

We see that the total amount of the meal, including the tip, was between $48 and $51.

Answer: E
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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the  [#permalink]

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New post 16 Apr 2020, 16:23
At a certain restaurant, a meal cost $42, and there was no tax. If the tip was more than 15 percent but less than 20 percent of the cost of the meal, then the total amount paid must have been between

(A) $42 and $45
(B) $45 and $46
(C) $46 and $47
(D) $47 and $48
(E) $48 and $51 --> correct: 42+ 42*15% < t < 42+42*20% => 42+6.3 < t < 42+8.4 => 48.3 < t < 50.4 =>48<48.3 < t < 50.4<51
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Re: At a certain restaurant, a meal cost $42, and there was no tax. If the   [#permalink] 16 Apr 2020, 16:23

At a certain restaurant, a meal cost $42, and there was no tax. If the

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