Numbers

1

Find the sum `(2 + 2^2 + 2^3 + 2^4 + ............+ 2^10)`

A. 2016
B. 2046
C. 2086
D. 2116

2

( 6 + 15 + 24 + 37 + ........................+ 105 ) = ?

A. 555
B. 625
C. 666
D. 696

3

Find the sum of all even natural numbers less than 75.

A. 1406
B. 1404
C. 1408
D. 1402

4

How many natural numbers between 17 and 80 are divisible by 6 ?

A. 4
B. 5
C. 6
D. 7

5

Find the remainder when `2^31 ` is divided by 3. ?

A. 3
B. 2
C. 4
D. 5