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14. A's income is 20% less than that of B. By what per cent is arol B. By what per cent is B's income more than ASTE 15. The price of petrol goes up by 10%. By how much per P 0 %. By how much per cent must a motorist reduce the consumption of petrol so that the expenditure on it remains un 16. The nanulation of t h e thresent population is 54000

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