During sale, Raghav bought a notebook marked for ₹50 at 10% discount and a pen marked for ₹100 at 83% discount. How much (in ₹) did he save due to sale?

Correct option is C

Given:

Notebook marked price = ₹50, discount = 10%.
Pen marked price = ₹100, discount = 83%.
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:
$$\text{Savings on notebook} = \frac{10}{100} \times 50 = ₹5$$ 
$$\text{Savings on pen} = \frac{83}{100} \times 100 = ₹83$$​

Total savings = 5 + 83 = ₹88