The savings of Arjun and Karan are in the ratio 7 : 9. If both save ₹3,000 more, the ratio changes to 10 : 12. What is Karan’s saving?
Show answer & explanation
Correct answer: A
Explanation
given :
Arjun : Karan = 7 : 9
Both save Rs 3000 more
New ratio = 10 : 12
According to the formula:
to assume in proportion
assume
Arjun = 7x
Karan = 9x
(7x + 3000) : (9x + 3000) = 10 : 12
12(7x + 3000) = 10(9x + 3000)
84x + 36000 = 90x + 30000
36000 − 30000 = 90x − 84x
6000 = 6x
x = 1000
Tax saving= 9x= 9000
Tax saving = Rs 9000