The distance between 2 places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/h t

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17 Sep 2021 Speed

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?

OPtion

1. 18 km/hour
2. 6 km/hour
3. 20 km/hour
4. 8 km/hour
5. 16 km/hour
6. 18 km/hour
7. 3 km/hour
8. 13 km/hour
9. 15.5 km/hour
10. None of the above

Solution

Speed of Romita = x kmph
(let)
Distance = Speed × Time
According to the question,
4 × 6 + x × 6 = 42
Þ 6x = 42 – 24 = 18
Þ x = 18 ÷ 6 = 3 kmph

Correct Option: 7 Best Solution (3)