I am a student of 11th standard and opting for JEE preparations hope sir can you please tell which book should I refer for 11 standard Jee preparations and of physics chemistry and mathematics so that I can improve my study and sir can you please send the photos of the book so that I can buy them easily

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?