Gate2019 cs Q4

4Ten friends planned to share equally the cost of buying a gift for their teacher. When two of them decided not to contribute, each of the other friends had to pay Rs 150 more. The cost of the gift was Rs. ___________.

Option : C
Explanation :
Let share of each student = x
Total cost of gift = 10 × x
x = 8(x + 150)
x = 600
Total cost = 10 × 600 = 6000

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