Ages — two-person average with known difference: The average of the present ages of Sachin and Saurabh is 36 years (sum 72). If Sachin is 8 years older than Saurabh, find Saurabh’s present age.

Introduction / Context:
Given a two-person average and their difference, we can split the total to find individual ages neatly.

Given Data / Assumptions:

• (Sachin + Saurabh)/2 = 36 ⇒ sum = 72.
• Sachin − Saurabh = 8.

Concept / Approach:
Let Saurabh = x and Sachin = x + 8. Then x + (x + 8) = 72 ⇒ solve for x.

Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

• 30 and 34 do not match both constraints simultaneously. 40 is Sachin’s age, not Saurabh’s.

Common Pitfalls:

• Assigning the 8-year difference to the wrong person.

Final Answer:
32 yr