If 15 litres oil is stored in 1-litre bottles up to 34th level, then how many bottles are needed?
20
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Solution
The correct option is A 20 Total quantity of oil = 15 litres
Since each 1-litre bottle is filled 34th ∴ Amount of oil stored in 1 bottle = 34×1 = 34 litre
Number of bottles = 15÷34
= 15×43
= 5×4
= 20 bottles are needed