A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.?

25 km/hour
28 km/hour
24 km/hour
20 km/hour

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : 24 km/hour

GIVEN:

Speed of a Car from A to B = 20 km/hour

Speed of Car from B to C = 30 km/hour

CONCEPT:

If in these types of questions, the distance is same then we ignore the value of the distance.

FORMULA USED:

Average Speed = 2 × S1 × S2/S1 + S2

CALCULATION:

∴ Required Average speed = 2 × 20 × 30/20 + 30 = 24 km/hour

4 views Answered 2022-09-04 04:29

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