Two trains for Mumbai leave Delhi at 6 am and 6.45 am and travel at 100 kmph and 136 kmph respectively. How many kilomet…

A car covers the first 39 kms of its journey in 45 minutes and covers the remaining 25 km in 35 minutes. What is the ave…

A train increases its normal speed by 12.5% and reaches its destination 20 min earlier. What is the actual time taken by…

A man travels some distance at a speed of 12 km/hr and returns at a speed of 9 km/hr. If the total time taken by him is …

A car covers 650 kmps in 12 hours and the other 850 kms in 18 hours. Find the average sped of the car ?

A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the spee…

A 6 × 6 grid is cut from an 8 × 8 chessboard. In how many ways can we put two identical coins, one on the bl…

A train without stopping travels 60 km/h and with stoppage 40 km/h. What is the time taken for stoppage on a route 300 k…