1. The average mark of 10 children is 80 then their total mark is

2. A man and woman are engaged in a work. A man can do a piece of work in 4 days and the
woman can do in 12 days. Find how many days will they take to finish it together?

3. The price of a house is decreased from rupees fifteen lakhs to rupees twelve lakhs. The percentage of decrease is

4. If 3 (t-3) = 5(2t+1) then t=?

5. The value of 16³ + 7³ - 23³ is

6. Find the next term of 4 in the series is 1, 1, 2, 8, 3, 27, 4,...

7. Three angles of a triangle are x-30°, x-45°, x+15°, find the value of x.

8. The difference between simple interest and compound interest for a sum of Rs.12,000 lent at 10% per annum in 2years, is

9. If you stand in a rectangular room, where two adjacent walls are covered with plane mirrors, the total number of your images will be

10. Audible range of rabbit is