How many bricks will be required to construct a wall of 10m long, 6m high and 22.5cm thick, if each brick measures 25cm by 12cm by 9cm?

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?