Salaries of Prasanna and Sathish are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sathish's present salary?	Choose the correct answer:	A) Rs. 15000	B) Rs. 18000	C) Rs. 38000	D) Rs. 43000	E) None
Sol.   Let the original salaries of Prasanna and Sathish be Rs. 2x and   Rs. 3x respectively. Then,   2x + 4000 / 3x + 4000 = 40/57   ⇔ 57(2x + 4000) = 40(3x + 4000)   ⇔ 6x = 68000   ⇔ 3x = 34000.   Sathish's present salary = (3x + 4000) = (34000 + 4000) = Rs.38000.   Answer Rs. 38000
<result>C</result>
Salaries of Prasanna and Sathish are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sathish's present salary?