Question

Prachi and Aniket start their journey towards each other from Delhi and Guwahati respectively. The speeds of Aniket and Prachi are 70 km/h and 75 km/h respectively. If the distance between Delhi and Guwahati is 1885 km then find after how much time (hours) they will meet.

1. 11 hr
2. 13 hr
3. 12 hr
4. 14 hr

Answer 1

Correct Answer - Option 2 : 13 hr

Given:

Speed of Prachi = 75 km/h

Speed of Aniket = 70 km/h

Distance = 1885 km

Formula Used:

Speed = Distance/Time

Concept Used:

If two objects are moving with speeds S₁ and S₂ in the opposite direction

Their relative speed is S₁ + S₂

Calculation:

Relative speed = 75 + 70 = 145 km/h

Using the speed Formula,

Time = 1885/145 = 13 h

∴ They will meet after 13 hours.