Sum Arithmetic Progression

Find the sum of the following AP -37,-33,-29,.... to 12 terms

• -200

• -180

• -160

• -120

If the first term of an AP is 2 and common difference is 4, then the sum of its 40 terms is

• 3200

• 1600

• 200

• 2800

Find the sum of the first 51 terms of the AP whose second term is 2 and fourth terms is 8

• 3774

• 3904

• 2424

• 2544

The first three terms of an AP are -2, -4, -6, .... Find the sum of the 25 terms after the 3^rd term.

• -812

• -800

• -788

• -650

Which of the following are the formulae for finding the sum of the first n terms of an AP

How many terms of the AP 2, 7, 12, ... will add up to 156?

• 7

• 8

• 9

• 10

• 4

• 5

• 6

• 7

The sum of the first 11^th term of an AP is 120, and the sum of the first 12^th term is 132. Find the value of the 12^th term.

• 12

• -12

• 32

• -32