1. 20 men can do one work in 30 days. In how many days can 80 men finish the same work?

2. The first quartile is calculated by the formula……?

3. A square based pyramid has base area 100 sq. meter and total surface area is 360 sq. meter. What will be the area of its triangular faces?

4. If aˣ⁻³= (a/a)ˣ⁻¹. What is the value of x?

5. The radius of a circle is 4cm, distance from the external point to the center is 5cm, the length of tangent from external point is………

6. If n(A)=80 and n(B)=64, what is the least value of n(AUB)?

7. The number 225 is mistakely written as 275 . Find the percentage error?

8. If A & B can do a piece of work in 8 days and 12 days respectively, how many part of the work do they work together in 4 days?

9. If the length and breadth of a rectangle are 20cm and 12cm respectively then find its perimeter.

10. What is the sum of the roots of a quadratic equation ax²+bx+c=0?

11. The length of a diagonal of a square is 3√2 cm. What will be the area of the square?

12. Find the value of: (14)⁶ *(15)⁵/(35)⁵ * (x)⁵

13. What is the yearly compound amount on Rs.5000 for 2 years at the rate of 10% P.A?

14. If 7x+2y=63 and 2z+7y=27, then find the value of x+y.

15. A cap is bought for Rs.200 and sold it for Rs.240. What is the profit percentage?

16. What is the H.C.F. of  a³+b³ and a⁴+a²b²+b⁴?

17. If x+y=10 and x-y=11, what is the value of x²-y²?