1. Salma's average in four tests is 80% . what mark does she need to score in her fifth test to make her average 84% ?
2. Murad bought equal number of 20-paisa and 30 paisa stamps . If the total cost of the stamps was Tk. 10 , what was the total number of stamps that Murad bought?
3. what is the total interest on Tk. 800 at 12.5% per annum for 9 months in taka?
4. A man deposits Tk. 600 in a Bank at 10% interest rate compounded annually. At the end of the second year , the total amount including interest will become TK.
5. A television service center can process 8 televisions in 18 minutes . How many televisions can it process in 3 hours at this rate?
6. A and B together can paint a wall in 3 days. A can do it alone in 5 days. How many days would it take B to do this job alone?
7. If the value of XYZ company stock drops form TK. 25 per share to Tk. 21 per share , what is the percent of the decrease ?
8. A cost was sold for Tk. 75 . The cost was sold for 150% of the cost of the cost. How much did the coat cost ?
9. what is the total interest on Tk. 800 at 12.5% per annum for 9 months in taka?
10. In a shipment of 120 machine parts 5 percent , 5 percent were defective , In a shipment of 80 machine parts , 10 percent were defective. For the two shipments combined , what percent of the machine parts were defective ?
11. A Petrol tank now is full. After you remove 8 gallons petrol from the full tank, the tank is then full. what is the capacity in gallons of the tank?
12. A company makes a profit of 6% on its first TK. 1,000 of sales each day and Tk. 55 per thousand on all sales in excess of TK. 1,000 for that day. How much profit will the company make in a day when sales are Tk. 6,000?
13. A certain sum of money consists of 30 coins, some of which are 10 paisa coins and the rest are 5 paisa coins . If the total value of the coins is TK. 2 , what is the number of 10 paisa coins?
14. If 40% of all women are voters and 52% of the population is women , what percent of the population are women voters?
15. The price of a certain television set is discounted by 10 percent, and the reduced price is then discounted by 10 percent. The series of successive discount is equivalent to a single discount of __