The average pocket money of 3 friends A, B and C is 80 in a particular

1.	The average pocket money of 3 friends A, B and C is 80 in a particular month. If B spends double and C spends triple of what A spends during that month and the average of their unspent pocket money is 60. What amount does A spend?1. 152. 123. 104. 14
Answer» Correct Answer - Option 3 : 10 Given: The average pocket money of 3 friends A, B and C is 80 in a particular month. B spends double and C spends triple of what A spends during that month and the average of their unspent pocket money is 60. Formula: Average of n numbers a1, a2, .…. an = (a1 + a2 + ... + an)/n Calculation: Total pocket money of (A + B + C) = 80 × 3 = 240 Total unspent pocket money = 60 × 3 = 180 Total spent money = 240 – 180 = 60 Let A spends Rs. x then B = 2x, and C = 3x According to question 6x = 60 ⇒ x = 10 ∴ A spends Rs. 10.

The average pocket money of 3 friends A, B and C is 80 in a particular month. If B spends double and C spends triple of what A spends during that month and the average of their unspent pocket money is 60. What amount does A spend?1. 152. 123. 104. 14

Answer» Correct Answer - Option 3 : 10

Given: The average pocket money of 3 friends A, B and C is 80 in a particular month. B spends double and C spends triple of what A spends during that month and the average of their unspent pocket money is 60.

Formula: Average of n numbers a1, a2, .…. an = (a1 + a2 + ... + an)/n

Calculation:

Total pocket money of (A + B + C) = 80 × 3 = 240

Total unspent pocket money = 60 × 3 = 180

Total spent money = 240 – 180 = 60

Let A spends Rs. x then B = 2x, and C = 3x

According to question

6x = 60

⇒ x = 10

∴ A spends Rs. 10.

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