Sita and Gita start walking from the same point on the road but in opposite directions. If Sita walks at the speed of 5 km/hr and Gita at the speed of 4 km/hr , in how much time will they be 27 Km apart?

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?