The father's age is six times his son’s age. Four years hence, the age of the father will be four times his son's age. The present ages, in years, of the son and the father are respectively. A. 4 and 24 B. 5 and 30 C. 6 and 36 D. 3 and 24

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?