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If the ratio between two positive numbers is 5:7 and their product is 560. The smallest number of them will be __________.
Question

If the ratio between two positive numbers is 5:7 and their product is 560. The smallest number of them will be __________.

A.

20

B.

14

C.

28

D.

10

Correct option is A

Given:
The ratio between the two positive number is 5 : 7
Solution:
Let be assume the number is 5x and 7x respectively
=> (5x) × (7x) = 560
=> x = 4
The smaller number = 5x = 5 × 4 = 20

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