Q.
A. 9 a.m.
B. 10 a.m.
C. 10.30 a.m.
D. 11 a.m.
E. None of the above
Correct choice: B
Explanation:
Suppose they meet x hours after 7 a.m.
Distance covered by A in x hours = 20x km.
Distance covered by B in (x - 1) hours = 25(x - 1) km.
20x + 25(x - 1) = 110
45x = 135
x = 3.
So, they meet at 10 a.m.