A and b together can do a work in 15 days a is 50 percentage more efficient than b alone can do the work in
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let power of b be 1
power of a will be 1.5
total power * time will give us energy
it is 2.5*15 is 37.5
be can provide this energy in 37.5/1 days
i.e. 37.5 days
a can do thus work in 37.5/1.5 days
i.e. 25 days
》》》》 Answer is 37.5 days for b & 25 days for a《《《《《
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