Maths question from Panchayat Secretary (VLW) exam, 2025 by JKSSB
Two natural numbers M and N are taken. M is 10 more than N. If 20 is added to M, we get 10 more than 3 times of N. What is the value of N?
Last updated May 30, 2026
Correct Answer:
Option B —
10
To find the value of N, we can reason through the relationship between the two numbers step by step without using any mathematical symbols.
Step 1: Understand the initial difference
We are told that M is 10 more than N. This means if we compare M to N right now, M has a head start of 10.
Step 2: Analyze what happens when 20 is added to M
Next, the problem states that we add 20 to M. Since M was already 10 more than N, adding another 20 means that this new number is now exactly 30 more than N.
Step 3: Compare this to the final clue
The problem also tells us that this new number is equal to 10 more than 3 times of N.
Let's look at the two ways we just described this new number:
It is N plus 30.
It is 3 times of N plus 10.
If we remove 10 from both of these descriptions to simplify the comparison, we find that:
N plus 20 is equal to exactly 3 times of N.
Step 4: Find the value of N
If adding 20 to N turns it into 3 times of N, it means that the 20 we added is filling the gap of the extra 2 times of N.
Since 2 times of N is equal to 20, half of that will give us the value of a single N. Half of 20 is 10.
Therefore, the value of N is 10.
Correct Answer: (B) 10
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
