Category: Mathematics

(A) 3-2x
(B) 1-2x
(C) 2x-1
(D) (x+3)/2

The answer is: (D) (x+3)/2
Solution

(A) 3-2x
(B) 1-2x
(C) 2x-1
(D) (x+3)/2

The answer is: (D) (x+3)/2
Solution

(A) 260
(B) 268
(C) 280
(D) 288

The answer is: (D) 288
Solution
This is an arithmetic sequence with common difference of 4. The first element is 2, and total elements are 12. So, a₁ = 1, d = 3 and n = 12. So, by using the formula of nth term of an arithmetic sequence, first we will find the 12th term

(A) 0
(B) 1
(C) 2
(D) 3

The answer is: (C) 2
The smallest prime number is 2.
A prime number is a natural number greater than 1 that has exactly two distinct positive divisors: 1 and itself. 2 is a prime number because its only divisors are 1 and 2.