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If qr : pr : pq = 1:4:7," then find " p...

If ` qr : pr : pq = 1:4:7," then find " p/(qr) : q/(pr)`.

A

` 4 : 1`

B

` 1 : 4`

C

` 1 : 16`

D

` 16 : 1`

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The correct Answer is:
D
Simplify the required ratio.
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PEARSON IIT JEE FOUNDATION-RATIO, PROPORTION AND VARIATION-Leval 1
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