Question

the cost of 1 litre petrol is 42 4/7 what is the cost of 10 1/2 litres of petrol

Answer 1

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Answer 2

Answer:

Concept: the question can be solved by simple multiplication.

Given: the cost of 1 litre petrol is $42\frac{4}{7}$

To find: the cost of $10\frac{1}{2}$ litres of petrol

Step-by-step explanation:

the question is asking  for more value than the given values. and when the question is asking for more, we have to multiply.

also, here the  figures are given in mixed fractions, to convert it into simple fractions ,

first multiply the denominator with the center number  and  add the resulting figure with the numerator.

so, cost if 1 litre is given $42\frac{4}{7}$

so cost of $10\frac{1}{2}$ litre are $42\frac{4}{7}$*$10\frac{1}{2}$

                                    or, $\frac{298}{7}$*$\frac{21}{2}$

                                     or, $149*3$

                                       or, $447$.

therefore, the cost is rs $447$.

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