Question

If the ratio of speeds of ‘X’, ‘Y’ and ‘Z’ is 6:3:9 respectively, and ‘X’ takes 30 seconds to cover 360 metres, then find the time taken by ‘Z’ to cover 540 metres.

A 25 secs
B 30 secs
C 36 secs
D 18 secs
E None of these
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