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Let salary = Rs. x Allowance = 0.15x Monthly income = 1.15x Annual income = 12 × 1.15x = 13.8x Savings = 40% of 13.8x = 0.40 × 13.8x = 5.52x 5.52x = 193200 ⇒ x = 193200 / 5.52 = Rs. 35000 Allowance = 0.15 × 35000 = Rs. 5250
A boat can cover 40 km upstream and 60 km downstream in 13 hour. Also it can cover 50 km upstream and 72 km downstream in 16 hour. Find the speed of boa...
A man can row one quarters of a kilometer against the stream in 30/4 minutes and return in 5/2 minutes. The speed of the man in still water is:
A boy can swim in water with a speed of 10 km/hr in still water. If the speed of the stream is 4 km/hr, what will be the time taken by the boy to cover ...
Speed of a boat in still water to speed of boat in upstream is 7:5. If the boat can travel 360 km in downstream in 5 hours, then find the time taken by ...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
Speed of a Motorboat in still water is 75kmph. If the motorboat travels 150 km along the stream in 1 hour 40 minutes, then the time taken by it to cover...
A man can row 12 km/hr in still water. If the speed of the current is 3 km/hr, it takes 4 hours more in upstream than in the downstream for the same dis...
Ratio of speed of boat in downstream and speed of stream is 5:3, if speed of current is 9 km/hr, then find distance travelled (in km) upstream in 8 hours.
The speed of the boat in still water is 10 km/hr and the speed of the stream is 5 km/hr. A boat goes 75 km downstream with its usual speed but at the ti...
A man can row 32 km/hr in still water. It takes him thrice as long to row up as to row down the river. Find the rate of the current.
