ABC26GN5115 · Races and Games of Skill

Subject: General Aptitude · Chapter: Races and Games of Skill · Exam: 2006 · Marks: · Difficulty:

A can run 22.5 m while $B$ runs 25 m. In a kilometre race, $B$ beats A by

(a)100 m

(b)$111 \frac{1}{9} \mathrm{m}$

(c)25 m

(d)50 m

Answer

Answer (as printed): A

Explanation

$$\begin{aligned} & B: A=25: \frac{45}{2}=50: 45=(50 \times 20):(45 \times 20) \\ & =1000: 900 . \\ & \therefore \text { In a km race, } B \text { beats } A \text { by }(1000-900) \mathrm{m}=100 \mathrm{m} . \end{aligned}$$

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