1. The exponential form of 1/8 × (3)-3 2. A machine in a soft drink factory fills 600 bottles in 5 hours. How many bottles will it fill in 2 hours ?

3. The standard form of 0.000064 is :

4. The value of (-5)-2 x (-5)2

5. If ‘a’ represents the cost of apples and ‘b’ represents number of apples bought. Which option

shows that ‘a’ and ‘b’ are in inverse proportion ?

6. The value of ( 1/3 )-2
is :
7. The value of (a + b)2 – (a - b)2
is
8. If (2 )
m+2 × (2)
5 = (2 )
8
, then the value of m is:

9. Volume of a rectangular box ( cuboid ) with length = 2ab , breadth = 3ac and height = 2ac is
10. Factorised form of p2
- 17p -38
11. 12 men can dig 8 meters long trench in a day. How many men should be employed for digging
50 meter long trench of the same type in one day?
12. The area of a square is 9x2 + 24xy + 16y2
. Find the side of the square .