A can do a piece of work in 24 days. If B is 60% more efficient than A. Then the number of days required by B to do the twice as large as the earlier work is (a) 24 (b) 36 (c) 15 (d) 30

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?