A tradesman sold an article at a loss of 20%. Had he sold it for Rs.100 more, he should have gained 5%. The cost price of the article was A) Rs 360 B) Rs 400 C) Rs 425 D) Rs 450

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?