A cook uses fifteen 2-litre bottles of cooking oil in 4 weeks. If he decides to buy 5-litre tins of cooking oil instead, how many tins of cooking oil will he use over a 10-week period, if the rate at which it uses remains unchanged?
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Answer:
Correct answer is 15
Step-by-step explanation:
15x2=30lites in 4 weeks
for 1 week 30/4=15/2=7.5litre per week
as he uses over a 10 week so
7.5x10=75litre
he buys 5litre tins so
75/5=15tins
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