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TSD race part - 2
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Race concept - 2

Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Visit my youtube channel BHARAT GUPTA-RADIX .

U
Unacademy user
Sir, in the 2nd last question can we derive an answer using the assumption that A wins the race instead of B?
IN 2nd last question, you have assumed that B wins the race and then came up with the logic of a covered 50+x and B covered 500 and formed a equation. But we can assume that A covered 550 m and equation can be (25/24)=(550/l) where l is the distance covered by B? will that be wrong?
Dear Sir, In the last question, the units of time are different (60 minute and 30 seconds). Should we not convert it into same units, the answer will then differ.
Bharat Gupta
2 years ago
actually first value is 60 sec not 60 min
Aditya Pillay
2 years ago
Ok sir, Thankyou.
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  1. TIME, SPEED AND DISTANCE RACE 2


  2. A runs 50% faster than B. If A gives a start of 10 m to B race ends in dead heat. What is the length of race? a, 20 m b. 30 m c. 50 m d. 100 m


  3. A runs 50% faster than B. If A gives a start of 10 m to B race ends in dead heat. What is the length of race? a, 20 m b. 30 m C. 50 m d. 100 m I. S 3 s un lom


  4. A's speed is 18/17 times that of B. If A and B run a race, what part of the length of the race should A give B as a head start, so that the race ends in a dead heat? a. 1/17 part b. 1/35 part c. 1/18 part d. race never ends in dead heat


  5. A's speed is 18/17 times that of B. If A and B run a race, what part of the length of the race should A give B as a head start, so that the race ends in a dead heat? a. 1/17 pant b. 1/35 part c. 1/18 part d. race never ends in dead heat 18 a baea us


  6. A's speed is 18/17 times that of B. If A and B run a race, what part of the length of the race should A give B as a head start, so B wins by 10%? a. 3/17 part b. 8/35 part c. 3/20 part d. 5/17 part


  7. A's speed is 18/17 times that of B. If A and B run a race, what part of the length of the race should A give B as a head start, so B wins by 10%? a. 3/17 pant b. 8/35 part c. 3/20 part d. 5/17 part 18 oins ID ren o a a we hwe 9 i-a 12 2


  8. A and B run a 500 m race, where A beats B by 20 m. To do a favour to B, A starts 50 behind the starting line in a second 500 m race. They both run at their usual speeds. What is the outcome of the second race? a. A wins by 30 m c. A wins by 175/6 m b. B wins by 30 m d. B wins by 175/6 m


  9. A and B run a 500 m race, where A beats B by 20 m. To do a favour to B, A starts 50 behind the starting line in a second 500 m race. They both run at their usual speeds. What is the outcome of the second race? a. A wins by 30 m c. A wins by 175/6 m b. B wins by 30 m d. B wins by 175/6 m Coo 2.4 AB 4g0 2M li300 2M '72-


  10. In a kilometre race, A beats B by 60 min and B beats C by 30 seconds. If A beats C by 250 m in the same race. Find the time taken by A to run the race.? a. 200 sec b. 400 sec c. 270 sec d. 360 sec