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The distance between 2 places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/h towards S and at the same time Romita starts from S towards R also with some uniform speed. They meet each other after 6 hours. The speed of Romita is
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- 18 km/hour
- 6 km/hour
- 20 km/hour
- 8 km/hour
- None of these
Correct Option: E
Speed of Romita = x kmph
(let)
Distance = Speed × Time
According to the question,
4 × 6 + x × 6 = 42
⇒ 6x = 42 – 24 = 18
⇒ x = 18 ÷ 6 = 3 kmph
Second Method :
Distance from R to S = S1t1+S2t2
42 = 4 × 6 + x × 6
6x = 18 x = 3 km/hr.
