Given
Let price of Mobile = M and Walkman = W
1) 3M + 1W = 80000
2) 5M + 2W = 150000
Solution
Multiply equation (1) by 2:
6M + 2W = 160000 ... (3)
Subtract equation (2) from equation (3):
(6M + 2W) - (5M + 2W) = 160000 - 150000
M = 10000
Price of a mobile phone = Rs. 10000
Final Answer
So the correct answer is (d)
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