Quiz Discussion

A runs 1 2/3  times as fast as B. If A gives B a start of 80 m, how far must the winning post be so that A and B might reach it at the same time?

• 1]

  200 m

• 2]

  300 m

• 3]

  270 m

• 4]

  160 m

Two bike riders ride in opposite directions around a circular track, starting at the same time from the same point. Biker A rides at a speed of 16 kmph and biker B rides at a speed of 14 kmph. If the track has a diameter of 40 km, after how much time (in hours) will the two bikers meet?

• 1]

  6.52

• 2]

  8.14

• 3]

  4.18

• 4]

  5.02

In a 200 metres race A beats B by 35 m or 7 seconds. A's time over the course is:

• 1]

  40 sec

• 2]

  47 sec

• 3]

  33 sec

• 4]

  None Of These

In a 400 m race, A gives B a start of 5 seconds and beats him by 15 m. In another race of 400 m, A beats B by 7 1/7 seconds. Their respective speed are -

• 1] 6 m/sec, 7 m/sec
• 2] 5 m/sec, 7 m/sec
• 3] 8 m/sec, 7 m/sec
• 4] 9 m/sec, 7 m/sec

A man starts in a boat from A toward B against the stream. After reaching a point M on the way, he throws a rubber ring into the water. He takes 8 minutes from then to reach his destination and the ring exactly A at that moment. If the distance between  A and B is 4 km, then find the speed of boat in still water

• 1]

  15 kmph

• 2]

  12 kmph

• 3]

  30 kmph

• 4]

  45 kmph

In a 100 m race, A can beat B by 25 m and B can beat C by 4 m. In the same race, A can beat C by:

• 1] 21 m
• 2] 26 m
• 3] 28 m
• 4] 29 m

In a race of 200 m, B can give a start of 10 m to A and C can give a start of 20 m to B. The start that C can give to A in the same race is ?

• 1] 27 m
• 2] 29 m
• 3] 30 m
• 4] 25 m

Four sisters Suvarna, Tara, Uma and Vibha are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister had Rs. 32. How much money did Suvarna start with ?

• 1] Rs. 60
• 2] Rs. 34
• 3] Rs. 66
• 4] Rs. 28

In a 100 m race, A can give B 10 m and C 28 m. In the same race B can give C:

• 1] 18 m
• 2] 20 m
• 3] 27 m
• 4] 9 m

In a kilometre race, A, B and C are three participants. A can give B start of 50 m and C a start of 69 m. The start which B can allow C, is -

• 1] 17 m
• 2] 18 m
• 3] 19 m
• 4] 20 m