There are 20 girls and 15 boys in a class.

(a)What is the ratio of number of girls to the number of boys?

(b)What is the ratio of girls to the total number of students in the class?

In figure, P is a point in the interior of a parallelogram ABCD.

Show that:

(i) ar (APB) + ar (PCD) =ar (ABCD)

(ii) ar (APD) + ar (PBC) = ar (APB) + ar (PCD)

a) 271 x 362

(b) 5271 x 3411

(c) 32 x 488

(d) 451 x 200

^{2}."In which year was he born.There are 20 girls and 15 boys in a class.

(a)What is the ratio of number of girls to the number of boys?

(b)What is the ratio of girls to the total number of students in the class?

1 +4= 5

2+5=12

3+6=21

5+8=?

How many numbers are there from 1000 to 9999?

In figure, P is a point in the interior of a parallelogram ABCD.

Show that:

(i) ar (APB) + ar (PCD) =ar (ABCD)

(ii) ar (APD) + ar (PBC) = ar (APB) + ar (PCD)