Subject
Bank Exam
Topic
Bangladesh Krishi Bank 2012 (Inspector)
If price of oil is increased by 331/3%, by how much a housewife must reduce consumption of oil so that her expenditure on oil remains the same?
If price of oil is increased by 331/3%, by how much a housewife must reduce consumption of oil so that her expenditure on oil remains the same?
ক)
331/3%খ)
25%গ)
40%ঘ)
59%Explanation
If price of x amount oil was 100 Then, now it is 100+331/3 = 1331/3 Housewife used to spend 100 for x amount of oil. 1331/3 is the price of x amount 100 is the price of x*100/1331/3 = x*100*3/400 = 3x/4 Must reduce (x- 3x/4) = (4x-3x)/4 = x/4 &nbsRelated questions
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