Maths question from Social Forest Worker exam, 2026 by JKSSB
Six years ago, the ratio of the ages of Kunal and Sagar was 6:5. Four years hence, the ratio of their ages will be 11:10. Based on this information, identify the single correct statement from the list below:
Last updated Jul 21, 2026
Correct Answer:
Option C —
Six years ago, Kunal was 12 years old
Step 1: Set up their ages
Six years ago:
Kunal's age was 6 parts.
Sagar's age was 5 parts.
Present day (6 years later):
Kunal is 6 parts plus 6 years.
Sagar is 5 parts plus 6 years.
Four years from now:
Kunal will be 6 parts plus 10 years.
Sagar will be 5 parts plus 10 years.
Step 2: Find the value of 1 part
Four years from now, their ages will be in a 11 to 10 ratio.
10 times Kunal's future age equals 11 times Sagar's future age.
10 times (6 parts plus 10 years) gives 60 parts plus 100 years.
11 times (5 parts plus 10 years) gives 55 parts plus 110 years.
Comparing both sides:
60 parts plus 100 equals 55 parts plus 110.
The difference of 5 parts equals 10 years.
Divide 10 by 5 to find that 1 part equals 2 years.
Step 3: Calculate their current ages
Kunal's present age: 6 parts plus 6 years = 12 plus 6 = 18 years old.
Sagar's present age: 5 parts plus 6 years = 10 plus 6 = 16 years old.
Step 4: Check the options
A) Sagar is currently 18 years old — Incorrect (he is 16).
B) Sum of their current ages is 32 years — Incorrect (18 plus 16 is 34).
C) Six years ago, Kunal was 12 years old — Correct (18 minus 6 is 12).
D) Two years ago, the ratio of their ages was 5 to 4 — Incorrect (16 to 14 reduces to 8 to 7).
Correct Answer:
C) Six years ago, Kunal was 12 years old
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
