Multiple choice

Rohit walks at 6 km/hr and reaches his destination 10 min late. If he walks at 7 km/hr. he reaches his destination on time. What distance he will cover in given time ?

  1. (a) 7 km

  2. (b) 6 km

  3. (c) 9 km

  4. (d) 12 km

  5. (e) 10 km

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Let distance be D. Time difference is 10 min (1/6 hr). D/6 - D/7 = 1/6. D/42 = 1/6. D = 7 km.

AI explanation

Let the exact time to reach the destination be T hours, so using the Time = Distance / Speed formula gives the equation D/6 - 10/60 = D/7. Solving this equation yields D/6 - D/7 = 1/6, which simplifies to D/42 = 1/6. This makes the distance D equal to 7 km, which he covers in the given time.