Price of bicycle inclusive of sales tax = Rs. 1,664
List price of bicycle = Rs. 1,600
(i) Sales tax = Rs. 1,664 – Rs. 1,600 = Rs. 64
= 4% Ans.
(ii) New rate of sales tax = (4 + 6)% = 10%
New total price = Rs. 1,600 + 10% of Rs. 1,600
= Rs. 1,600 + (10/100) × 1,600
= Rs. 1,600 + Rs. 160
= Rs. 1,760 Ans.