There are 32 students in a class of which 12 are girls. Find: (i) The ratio of number of boys to number of girls. (ii) The ratio of number of boys to total number of students.

What are the differences between similar triangles and congruent triangles?

What are Armstrong numbers?

All real numbers are rational numbers.

A) True

B) False

The L.C.M of the smallest 2 digit composite number and the smallest composite number is:

• (a) 12
• (b) 4
• (c) 20
• (d) 44

Are all natural numbers also whole numbers?