Welcome to your 07 Math Free

1. 
The literal number involved in each equation is called ____________
2. 
In the standard form of a rational number, the denominator is always a
3. 
In India there are about 80 Million children old enough to go to school. If 16 million cannot go to school, what is this as a percentage of all the children?
4. 
Multiplicative inverse of -3/5 is
5. 
On a number line, 5/7 is to the ______ of zero (0).
6. 
If the sides of a parallelogram are increased to twice its original lengths, how much will the perimeter of the new parallelogram increase?
7. 
After 12 years Rohit will be 3 times as old as he was 4 years ago. Find his present age.
8. 
The root of 3x-4=2 is
9. 
A rational number is defined as a number that can be expressed in the form p/q , where p and q are integers and
10. 
In the standard form of a rational number, the common factor of numerator and denominator is always:
11. 
If Reena pays an interest of ₹1000 for 4 years on a sum of ₹ 2500, find the rate of interest per annum(p.a.)
12. 
The absolute value of an integer is less than the integer
13. 
Express Rs. 0.56 as a percentage of Rs. 3.50
14. 
Area of a rectangle and the area of a circle are equal. If the dimensions of the rectangle are 14 cm x 11 cm, then radius of the circle is :
15. 
4 squares each of the side 10 cm have been cut from each corner of a square sheet of paper of size 100 cm x 100 cm. From the remaining piece of paper, an isosceles right triangle is removed whose equal sides are each of 10 cm length. Find the area of the remaining part of the paper.
16. 
The area of a triangle is x cm² and base is b cm. What is the height of the triangle
17. 
Which of the following rational numbers is equal to its reciprocal?
18. 
Dimensions of a painting are 100 cm x 50 cm. Find the area of the wooden frame of width 5 cm around painting .
19. 
The reciprocal of ______ does not exist.
20. 
Find the value of (-44+4) / (-37+37)