Kamal started a business with Rs.25000 and after 4 months, Kiran joined him with Rs.60000. Kamal received Rs.58000 including 10% of profit as commission for managing the business. What amount did Kiran receive?
Choose one.
A) 75000 B) 70000 C) 72000 D) 78000 E) 76000
Explanation:   Ratio of the profits of Kamal and Kiran   =25000×12:60000×8   =25×12:60×8   =5×3:12×2   =5:4×2   =5:8   Let the total profit =x   Then Kamal received 10x/100=x/10 as commission for managing the business.   Remaining profit =x−x10=9x10 which is shared in the ratio =5:8   Total amount received by Kamal =x/10+9x/10×5/13   ⇒x/10+9x/10×5/13=58000   ⇒x+9x ×5/13=580000   ⇒x(1+45/13)=580000   ⇒x(58/13)=580000   ⇒x x 1/13=10000   ⇒x=130000   Kiran's share = 130000−58000=72000   Answer: Option 72000
<result>C</result>
Kamal started a business with Rs.25000 and after 4 months, Kiran joined him with Rs.60000. Kamal received Rs.58000 including 10% of profit as commission for managing the business. What amount did Kiran receive?