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The marked price of a shirt and trousers are in the ratio 1 : 2. The shopkeeper gives 40% discount on the shirt. If the total discount on the set of the shirt and trousers is 30%, the discount offered on the trousers is
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- 15%
- 20%
- 25%
- 30%
Correct Option: C
Let the marked price of shirt be p and that of trousers be 2p.
Let the discount on the trousers be q%. Then,
According to question ,
p × | + 2p × | = 3p × | |||
100 | 100 | 100 |
⇒ 40p + 2pq = 90p
⇒ 2q = 90 – 40
⇒ q = | = 25% | |
2 |