In what ratio should two varieties of sugar of Rs.18 per kg and Rs.24 kg be mixed together to get a mixture whose cost is Rs.20 per kg?
A. 1:3
B. 3:1
C. 1:2
D. 2:1
Basic Arithmetic
How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a mixture whose cost is Rs.52 per liter?
A. 120 liters
B. 180 liters
C. 110 liters
D. 160 liters
A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?
A. 5 kmph
B. 10 kmph
C. 30 kmph
D. 15 kmph
A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is________?
A. 10 kmph
B. 5 kmph
C. 20 kmph
D. 22 kmph
A person can swim in still water at 4 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?
A. 3
B. 4
C. 4 (1/2)
D. Insufficient data
A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
A. 60 kmph
B. 10 kmph
C. 30 kmph
D. 5 kmph
A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is_________?
A. 3
B. 7.5
C. 2.25
D. 1.5
A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is________?
A. 2 : 1
B. 3 : 1
C. 3 : 2
D. 4 : 3
If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph. then the man’s rate along the current is__________?
A. 4.25 kmph
B. 6 kmph
C. 6.5 kmph
D. 8.5 kmph
A man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. The speed (in km/hr) of the man in still water is:_________?
A. 2
B. 3
C. 4
D. 5