If the cost of a long-distance phone call is P paisa for the first minute and 2/3 P paisa for each additional minute, what is the cost, in paisa, of a 10-minute call of this type?
A. 3/5 P
B. 6P
C. 20/3 P
D. 7P
E. 23/3 P
সঠিক উত্তরঃ
D.
7P
Explanation:
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