Q. A is faster than B. A and B each walk 24 km. The sum of their speeds is 7 km/hr and the sum of times taken by them is 14 hours. Then A’s speed is equal to: ?

• A. 3 km/hr.
• B. 4 km/hr.
• C. 5 km/hr.
• D. 7 km/hr.

Correct Answer: B