Question

A car goes from A to B in three hours. It stays at A for five
hours and then returns to A. If the total item taken in the
journey including the stay at B be 12 hrs. and the average
running speed of the car be 60km/hr., how far is B from A?
(A)210 km
(B) 360 km
(C) 420 km
(D)720 km
please tell with explanation

Answer 1

Answer:

answer is 420

Explanation:

we will subtract 5 from 12 and then multiply by 60

12-5=7

(60×7)=420km

Answer 2

Correct Question

• A car goes from A to B in three hours. It stays at B for five hours and then returns to A. If the total time taken in the journey including the stay at B be 12 hrs. And the average running speed of the car be 60km/hr. how far is B from A?

Given

• A car travels from A to B
• It stays at B for 5 Hours
• Total Time including the stay = 12 Hours
• Average Speed = 60 km/h

To Find

• Distance Between A & B

Solution

● Avg Speed = Total Distance/Total Time

● Here the journey is just the time that doesn't include the stay so after subtracting the stay time from the whole and then using that on the average speed formula would give us our answer!!

✭ Time without the stay :

→ Time = Total Time - Time of stay

→ Time = 12-5

→ Time = 7 Hours

━━━━━━━━━━━━━━━━━━━━

✭ Distance between A & B :

→ Avg Speed = Total Distance/Total Time

→ 60 = Distance/7

→ 60 × 7 = Distance

→ Distance = 420 km

∴ The answer to the question is Option C