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20 Jun 2022, 06:15
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B
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Difficulty:
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83% (02:20) correct
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In a Stationery Shop, the ratio of the no. of Books, Pen & Pencil is 2 : 7 : 9. If the difference between the number of Pen & Pencil is a multiple of 3 as well as 7, what is the minimum number of Book, Pen and Pencil in the Shop?
(A) 415
(B) 378
(C) 289
(D) 278
(E) 178
(A) 415
(B) 378
(C) 289
(D) 278
(E) 178
yashikaaggarwal
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20 Jun 2022, 10:09
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The ratio of the no. of Books, pens & pencils is 2 : 7: 9
For the difference between the number of pens and pencils in the stationery to be a multiple of 3&7,
The ratio has to be multiplied with a multiple of 21.
The minimum number of books, pens, and pencils will be 2*21+7*21+9*21 => 42+147+189 => 378
Answer is B
Posted from my mobile device
For the difference between the number of pens and pencils in the stationery to be a multiple of 3&7,
The ratio has to be multiplied with a multiple of 21.
The minimum number of books, pens, and pencils will be 2*21+7*21+9*21 => 42+147+189 => 378
Answer is B
Posted from my mobile device
14 Nov 2024, 07:50
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