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 in the set of the shirt and trousers is 30%, the discount offered on the trousers is:

• ক 0.2
• খ 0.15
• গ 0.25 ✅ সঠিক উত্তর
• ঘ 0.3