a) 15%
b) 20%
c) 25%
d) 30%
Answer: c
Explanation: Let the price of shirt and trouser be Rs. 100 and Rs. 200 respectively.
Then, price of set of shirt and trouser = Rs. 300.
After giving 30% discount on the set,
Selling Price = 300 – 30% of 300 = 210.
Total Discount on Set = 90.
And Discount on shirt is 20% alone,
S.P of shirt alone = 100 – 40% of 100 = 60.
Rs. 40 is the discount on shirt then Rs. 50 must be the discount on the trouser.
So, discount on trouser = $$\frac{{50 \times 100}}{{200}}$$ = 25%.
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