2. Besides Bangladesh, which country recognizes Bangla as one of its official languages?
3. A person who leaves his or her own country to settle in another =
4. A drug store usually sells a certain medicine at 40% profit . During a sale, the medicine was sold for 10% less than the usual price. What percent profit the store made on each of this medicine during the sale?
5. How many districts in Bangladesh have borders with India?