Question

please answer
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Answer 1

(i) The cost of 1 litre oil =

$\frac{1122.20}{15.5} = \frac{11222 \times 10}{115\times 10} = \frac{11222}{115} litre$

(ii) The cost of 20 litres of oil =

$\frac{20 \times 1122.20}{15.5} = \frac{20 \times 11222 \times 10}{155 \times 10} = \frac{44888}{31} litres$

(iii) The example of like decimal of 15.005= 19.234