a) Rs. 15
b) Rs. 0
c) Rs. 20
d) Rs. 10
Answer: a
Explanation: 40% discount on 500 = 200
Two consecutive discount on 500:
500 == 30% down ⇒ 350 == 10% down ⇒ 315
Total discount = 150 + 35 = 185
difference = 200 – 185 = Rs. 15
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