1.

A takes 5 hours to travel 320 km while B takes 7 hours to travel 301 km. Find the time A will take to cover a distance that B covers in 19 hours after reducing his speed by 13 km/hr.1. 8.9 hr2. 9.8 hr3. 7.8 hr4. 8.7 hr

Answer» Correct Answer - Option 1 : 8.9 hr

Given:

A takes 5 hours to travel 320 km while B takes 7 hours to travel 301 km.

Formula Used:

Distance = time x speed

Calculation:

Speed A = (320/5) km/hr = 64 km/hr

Speed of B = (301/7) km/hr = 43 km/hr

Now, distance covered by B in 19 hours after reducing his speed by 13 km/hr = (30 × 19) km = 570 km.

Time required = (570/64) hours = 8.9 hours

∴ A will take 8.9 hours.



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