The outer dimensions of a closed wooden box are 10 cm by 8 cm by 7 cm. The thickness of the wood is 1 cm. Find the total cost of wood to make box, if 1 cubic cm of wood costs Rs.2.00.

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?