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Tips on cracking Aptitude Questions on Races and games

Tips on cracking Aptitude Questions on Races and games [ https://learningpundits.com/module-view/64-races-and-games/1-tips-on-races-and-games/ ].<br><br> LearningPundits helps Job Seekers make great CVs [ https://learningpundits.com/module-view/1-cv-preparation-for-freshers/1-cv-writing-tips-for-freshers/ ] , master English Grammar and Vocabulary [ https://learningpundits.com/course/4-english-grammar/ ] , ace Aptitude Tests [ https://learningpundits.com/course/11-mathematical-aptitude/ ], speak fluently in a Group Discussion [ https://learningpundits.com/module-view/6-group-discussion-questions/1-tips-for-speaking-in-a-group-discussion/ ] and perform well in Interviews [ https://learningpundits.com/course/2-personal-interview/ ] We also conduct weekly online contests on Aptitude and English [ https://learningpundits.com/contest ]. We also allow Job Seekers to apply for Jobs [ https://learningpundits.com/applyForJobs ]

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Tips on cracking Aptitude Questions on Races and games

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  1. 3 TIPS on cracking Aptitude Questions on Races and Games

  2. Tip #1: Acquaint yourself with the terms Dead Heat Race: A race in which all the contestants reach the Goal at the same time. Start: If A and B are two contestants in a race, such that before the start of the race, A is at the starting point and B is ahead of A by 12 meters, then we say that ‘A gives B a start of 12 meters’. Game: A game of 100, means that the person among the contestants who scores 100 points first is the winner. If A scores 100 points while B scores only 80 points, then we say that 'A can give B 20 points’. This implies that if A actually gave B a start of 20 points, then the contest would result in a dead heat.

  3. Tip #2: Assume that the speed or the scoring rate for each player is constant Question: In a game of 100 points, A can give B 20 points and C 28 points. How many points can B give C? Solution: By the time A scores 100 points, B scores only 80 and C scores only 72 points. Let the Scoring Rate of A be Sa. (Scoring Rate = score/ time) Scoring Rate of B, Sb = 80/100 x Sa = 0.8 Sa Scoring Rate of C, Sc = 72/100 x Sa = 0.72 Sa Time taken for B to get 100 points = 100/Sb = 100/ (0.8 x Sa) Score taken by C in this time period = Sc x 100/ (0.8 x Sa) = 72/0.8 = 90 Thus, B can give C 10 points. Question: In a 200 m race A beats B by 35 m or 7 sec. Find A's time over the course. Solution: By the time A completes the race, B is 35m behind A and would take 7 more seconds to complete the race. => B can run 35 m in 7 s. Thus, B’s speed = 35 / 7 = 5 m/s. Time taken by B to finish the race = 200 / 5 = 40 s. Thus, A’s time over the course = (40 – 7)s = 33 s.

  4. Tip #3: If A runs x times faster than B, A’s speed is actually 1+x the speed of B. • Question: A runs 1⅔ 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? • Solution: • Speed of A, Sa = 5/3 x Sb • Let the distance of the course be ‘d’ meters • Time taken by A to cover distance ‘d’ = Time taken by B to cover distance ‘d-80’ • d/[5/3 x Sb] = (d-80)/Sb • 3d = 5d – 400 • 2d = 640 => d = 200m • Question: A runs 1⅔ times faster than 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? • Solution: • Speed of A, Sa = (1 + 5/3) x Sb = 8/3 x Sb • Let the distance of the course be ‘d’ meters • Time taken by A to cover distance ‘d’ = Time taken by B to cover distance ‘d-80’ • d/[8/3 x Sb] = (d-80)/Sb • 3d = 8d – 640 • 5d = 640 => d = 128m

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