Quiz Discussion

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

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

In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:

• 1]

  20 m

• 2]

  25 m

• 3]

  22.5 m

• 4]

  9 m

A and B take part in 100 m race. A runs at 5 kmph. A gives B a start of 8 m and still beats him by 8 seconds. The speed of B is:

• 1] 5.15 kmph
• 2] 4.14 kmph
• 3] 4.25 kmph
• 4] 4.4 kmph

A and B can cover a 200 m race in 22 seconds and 25 seconds respectively. When Av finished the race, then B is at what distance from the finishing line ?

• 1] 24 m
• 2] 30 m
• 3] 48 m
• 4] 54 m

In a 500 m race, the ratio of the speeds of two contestants A and B is 3 : 4. A has a start of 140 m. Then, A wins by:

• 1] 60 m
• 2] 40 m
• 3] 20 m
• 4] 10 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 300 m race A beats B by 22.5 m or 6 seconds. B's time over the course is:

• 1] 86 sec
• 2] 80 sec
• 3] 76 sec
• 4] None of these

In a 800 metre race, A defeated B by 15 seconds. If A's speed was 8 km/hr, the speed of B was -

• 1]

  16/27 km/hr

• 2]

  27/16 km/hr

• 3]

   km/hr

• 4]

   km/hr

A runs 1 2/3 or  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