alleryStart learning →A purse has 12 pieces of paper money, each Rs 10 or Rs 50, worth Rs 280 in all. How many Rs 50 pieces are there?
A8
B4
C6
D3
Answer & Solution
Correct answer: B. 4
With b notes of Rs 50: 10(12 - b) + 50b = 280 gives 40b = 160, so b = 4.
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