P and Q start a business with initial corresponding profits are in the 13:8. Their corresponding proffits are in the ratio of 7:5. If P invested his money for 7 months, find the time period for invested his money .
A
8 months
B
9 months
C
10 months
D
11 months
Correct Answer: 8 months
ধরি, Q এর বিনিয়োগের সময়. x months ( 13 × 7) : ( 8 × x) = 7 : 5 13 ×7 /8x = 7/5 8x = 65 x = 65/8 x = 8.125 x = 8 টি।