Question

If 51/2litre of oil cost is 70.50.what will be the cost of 81/2

Answer 1

$\textbf{Answer :}$

51/2 litre of oil costs Rs 70.50

1 litre of oil costs Rs (70.50)/(51/2)

= Rs 141/51

= Rs 47/17

So, 81/2 litre of oil will cost

= Rs (47/17 × 81/2)

= Rs 111.97

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