Let man’s rate upstream be x kmph. Then his rate downstream = 3x kmph. ∴Rate in still water =1/2 (3x+x)kmph=2x kmph ⇒32 = 2x⇒x = 16⇒3x=48 ∴ Rate of the stream =1/2 (48-16)kmph=16 kmph Alternate Method: Let U = speed of man in still water & V = speed of water So here N = time of upstream/ time of downstream = 3 So U/V = (N+1)/(N-1) = (3+1)/(3-1) = 4/2 =2 V = 32/2 = 16kmph
If the family decides to reduce their Transportation and Miscellaneous expenses by 25% each, what will be their new total monthly expenditure?
If the number of men visiting Audi 4 is 400 and the women visiting Audi 2 is 576. Then the number of children visiting Audi 2 is what percent of the num...
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