Question

jhon's bike covers a distance of 99.2 km per 1.6 litres of petrol.if 1 litre of petrol costs rs.70.2 how much money does he need to buy the petrol needed to cover a distance of 186km​

Answer 1

$Given \: John's \: bike \: covers \: a \: distance$

$of \:99.2 \: km \: per \: 1.6 \: liters \: of \: petrol$

$Quantity \: of \: petrol \: needed \: to \: cover$

$a \: distance \: of \: 186 \: km \: is$

$= \frac{1.6 \times 186 }{99.2}$

$= 3 \: litres \: ---(1)$

$Cost \: of \: 1 \:litre \: petrol = Rs \: 70.2$

$\therefore The \:money \: he\: need\: to\: buy$

$The\: petrol \: needed \: to \:cover \: the$

$distance \: of\: 186\:km = 3 \times 70.2$

$= Rs \: 210.60$

Therefore.,

$\red{ Required \: money } \green { = Rs \: 210.60}$

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Answer 2

Answer:

Rupees 210

Step-by-step explanation:

John's bike covers a distance of 99.2 km per 1.6 liters of petrol.

Amount of petrol needed to cover 1 km

= 1.6÷99.2

= 16/10 × 10/992

= 1/62 litres

Amount of petrol needed to cover 186 km

= 1/62×186

= 3 litres

1 litre of petrol cost rupees 70.2

Therefore, cost of 3 litres of petrol

= 3×70.2

= 210.6

John needs rupees 210 to buy petrol that is required to cover a distance of 186 km.