During sale, Raghav bought a notebook marked for ₹35 at 20% discount and a pen marked for ₹100 at 79% discount. How much (in ₹) did he save due to sale?

Correct option is D

Given:
Notebook marked price = ₹35, discount = 20%.
Pen marked price = ₹100, discount = 79%.
Concept Used:

Savings on an item =$$\left( \frac{\text{Discount percentage}}{100} \right) \times \text{Marked price}$$​
Total savings = Savings on notebook + Savings on pen.

Solution:
$$\text{Savings on notebook} = \frac{20}{100} \times 35 = ₹7$$​​
$$\text{Savings on pen} = \frac{79}{100} \times 100 = ₹79$$​

Total savings = 7 + 79 = ₹86

Option (d) is right.