Question

a car consumes 10 liters of petrol to cover a distance of 150 km
A) how much petrol will it consume for covering distance of 450
B) how much distance will it cover in 15 liters of petrol

Pls tell me ​

Answer 1

Answer:

A)30l B)225 km

Step-by-step explanation:

You can do both the questions by two methods first by unitary method and second by direct proportion

I will do one question by direct proportion and the second one with unitary method

first with unitary method

1 km is covered in 150 / 10 = 15 litres

so 450 km will be covered in in 450/15=30 litres

second part by direct proportion

X1/y1=X2/y2

150/10=X2/15

therefore X2=225 km

hope it helps!!

Answer 2

✬ Petrol = 30 Litres ✬

✬ Distance = 225 km ✬

Step-by-step explanation:

Given:

• A car consumes 10 litres of petrol to cover a distance of 150 km.

To Find:

• How much petrol will it consume for covering distance of 450 ?

• How much distance will it cover in 15 litres of petrol ?

Solution: Let's find out , how much petrol the car will consume for covering 1 km.

[ For this divide the distance, 150 km by 10 litres ]

➟ 150/10

➟ 15 km

So the car consumes 1 litre of petrol for covering distance of 15 km.

Now let , for covering a distance of 450 the car will consume x litres.

$\implies{\rm }$ x = Distance/15

$\implies{\rm }$ x = 450/15

$\implies{\rm }$ x = 30 litres

Hence, the car will consume 30 litres of petrol for covering distance of 450 km.

________________________

Now , let car will cover a distance of x km in 15 litres of petrol.

• x = 15 × distance covered in 1 litre

$\implies{\rm }$ x = 15 × 15

$\implies{\rm }$ x = 225 km

Hence, the car will cover a distance of 225 km in 15 litres of petrol.