To complete a job, Babu needs 6 more days than Abu. If both of them do the job together it takes 4 days to complete it. How many days does one need, if they do the job separately?

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?