Q. There are four prime number written is ascending order. The product of the first three is 385 and that of the last three is 1001. The last number is

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Solution

The correct option is B 13
Let a, b, c, d be the four numbers
$\frac{a b c}{b c d} = \frac{385}{1001} \frac{a}{d} = \frac{5}{13} d = 13$

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Q. There are four prime number written is ascending order. The product of the first three is 385 and that of the last three is 1001. The last number is

The correct option is B 13Let a, b, c, d be the four numbers abcbcd=3851001ad=513d=13

The correct option is B 13
Let a, b, c, d be the four numbers
$\frac{a b c}{b c d} = \frac{385}{1001} \frac{a}{d} = \frac{5}{13} d = 13$