Solved 2023 Question Paper ICSE Class 10 Mathematics — Question 4

(a) By formula,

GST on an article = (Price of item - Discount) × Rate of GST

GST on hair oil = (1200 - 100) × 18%

= 1100 × $\dfrac{18}{100}$

= 11 × 18

= ₹ 198.

GST on cashew nuts = (600 - 0) × 12%

= 600 × $\dfrac{12}{100}$

= 6 × 12

= ₹ 72.

Total GST paid = ₹ 198 + ₹ 72 = ₹ 270.

Hence, total GST paid = ₹ 270.

(b) Total bill amount including GST = Total cost price + Total GST paid

= [(₹ 1200 - ₹ 100) + ₹ 600] + ₹ 270

= ₹ 1100 + ₹ 600 + ₹ 270

= ₹ 1970.

Hence, total bill amount = ₹ 1970.