Final answer:
After applying a 10% discount on the initial amount of Rs.750 for the biscuits, the total becomes Rs.675. An additional 1% cash payment discount further reduces the amount to b. Rs.668.25. Hence, the customer pays Rs.668.25 in cash.
Step-by-step explanation:
The question is about calculating the total amount a customer has to pay after discounts when purchasing biscuits at a grocery shop. We start with the calculation of the total cost before any discounts. The customer buys 25 packets of biscuits, priced at Rs.30 each, resulting in an initial total of Rs.750 (25 packets Ă— Rs.30).
Since the purchase is above Rs.500, a 10% discount applies, which is Rs.75 (10% of Rs.750). Subtracting this discount gives us Rs.675. Now, if the payment is made instantly in cash, an additional 1% discount is given on the discounted total. The 1% discount of Rs.675 is Rs.6.75. Subtracting this amount from Rs.675 results in the final total, which is Rs.668.25.
Therefore, the customer would have to pay Rs.668.25 by cash after receiving the 10% and additional 1% discount.