A lady went shopping and bought one red bag and 15 black bags. The cost of the red bag was 3 times the average cost of a black bag. If she had spent a total of TK X fir the bags, what was the cost of the red bag?(in terms of x)
A. x/5
B. 4x/17
C. x/6
D. 3x/16
E. None of these
সঠিক উত্তরঃ
C.
x/6
Explanation:
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