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The average pocket money of 3 friends A, B, C is ₹80 in a particular month. If B spends double and C spends triple of what A spends during that month and if the average of their unspent pocket money is ₹60, then A spends (in )
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- ₹10
- ₹20
- ₹30
- ₹40
- ₹10
Correct Option: A
The average pocket money of 3 friends A, B, C = ₹80
⇒ A + B + C = 3 × 80 = ₹240
Then money spent = 240 – 180 = 60
According to question,
⇒ A + 2A + 3A = 60
⇒ 6A = 60
⇒ A = ₹10
