A car travels with a speed of $30 km/h$ for $60 min$ and then with a speed of $40 km/h$ for $30 min$ . Find the total distance travelled by the car.

55 km

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45 km

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52 km

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50 km

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Solution

The correct option is D $50 km$
$Speed = Distance travelled / Time of motion$

Therefore,

$Distance travelled = Speed \times Time of motion$

In $60 min$ , i.e., $1 h$ , the car travelling with a speed of $30 km/h$ will cover
$30 \times 1 = 30 k m$

If the same car travels with a speed of $40 km/h$ for $0.5 h$ , the car will cover
$40 \times 0.5 = 20 km$

Therefore, the total distance travelled by the given car is,
$30 + 20 = 50 km$

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A car travels with a speed of 30 km/h for 60 min and then with a speed of 40 km/h for 30 min. Find the total distance travelled by the car.

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