Two cyclists start from the same place in opposite directions. One goes towards north at 18 kmph and the other goes towards south at 20 kmph. What time will they take to be 47.5 km apart? `1 1/4h r s` b. `2 1/4h r s` c. `2\ h r s .23\ m in` d. `2 1/2h r sdot`

Two aeroplanes start from the same place in opposite directions. One goes towards east at 320 km/h and the other goes towards west at 400 km/h what time will they take to be 720 km apart?

Two aeroplanes start from the same place in opposite directions one goes towards east at 320 km/h and the other goes towards west at 400 km/h what time will they take to be 720 km apart?

Two men starting from the same place walk at the rate of 5 kmph and 5.5 kmph respectively. What time will they take to be 8.5 km apart, if they wall in the same direction? 4 h r s 15 m in b. 8 h r s 30 m in c. 16 h r s d. 17 h r s

Two men starting from the same place walk at the rate of 5 km/h and 5.5 km/h respectively. What time will they take to be 8.5 km apart, if they walk in the same direction?

If Karan travels at a speed of 60 kmph and covers a distance in 9 hrs., then how much time will he take to travel the same distance at a speed of 90 kmph? 8 h r s b. 6 h r s c. 12 h r s d. 9 h r s

Two pieces A and B can fill a tank in 18 hrs and 6 hrs respectively. If both the pipes are opened simultaneously how much time will be taken to fill the tank? 4 1/2h r s b. 7 h r s c. 6 h r s d. 10 h r s

Two trains are coming from opposite directions with speeds of 75 km/hr and 100 km/hr on two parallel tracks. At some moment the distance between them is 100 km. After T hours, distance between them again 100 km. T is equal to 1 h r b. 1 1/7h r c. 1 1/2h r d. 2 h r s

Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A alone to fill the cistern? 1 h r s b. 2 h r s c. 6 h r s d. 8 h r s

A train 400 m long overtook a man walking along the line in the same direction as the train, at the rate of 5 kmph and passed him in 40 seconds. The train reached the station in 20 minutes after passing the man. In what time did the man reach the station? 2 h r 24 m in b. 2 h r 30min40 s e c c. 2 h r 36min48 s e c d. 2 h r 48min48 s e c