A man travels some distance at a speed of 16 km/hr and returns at a speed of 8 km/hr. If the total time taken by him is 3 hrs 45 min, the distance is
Let the distance travelled by a man be D km According to the question, Total time taken = 3 hrs 45 min = 3(45/60) = 15/4 hours Total time = T1 + T2 D/16 + D/8 = 15/4 (2D + 4D)/32 = 15/4 6D/32 = 15/4 D = 20 km
P can do a piece of work in 10 days, Q can complete double the work in 20 days and R can do the work in 15 days. If all of them together earn Rs. 3200, ...
A work can be completed by ‘A’ and ‘B’, alone in 14 days and 7 days, respectively. Find the number of days taken by ‘C’ to complete the same...
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A can do a work in 45 days and the same the work is done in 15 days by A and B together, then in how many days B can complete the 20% of work?
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P can do a piece of work in 10 days. Q can do it in 16 days. With the help of R, they finish the work in 4 days. In how many days can R alone do the who...
A can complete `1/4` of a work in 6 days and B can complete `2/5` of the work in 12 days. In how many days can both A and B together complete the work?<...
