Johny wants to stitch a cover for his C.P.U whose length, breadth and height are 20cm , 45cm and h=50cm respectively. Find the amount he has to pay if it costs Rs 50 per sq.m .

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?