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Source: — Data Sufficiency |
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by prat_agl » Sat Aug 25, 2012 11:50 pm
A. s = r + 5
r<n<r+5

If r is integer say 2, n = 2 ,3 ,5 ,6 -- 4 values
If r in not integer say 1.5 n = 2,3,4,5,6 -- 5 values Not sufficient.

B. If r & s are non integer, we can't find value of n as R&S can be any number. Insufficient,

Combining both, we know there are 5 value of n. Sufficient.
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