The distance between two places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/hr 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 :

Answer: Option C

Solution

Answer: Option C

Solution:

Let speed of Romita be x km
According to the question,

(4 + x) = $$\frac{42}{6}$$ $$\left(\text{S = }\frac{\text{D}}{\text{T}}\right)$$
4 + x = 7
x = 3 km/hr