AP and GP

Which term of the AP; 18, 15, 12, ....... is -81 ?

• 36

• 35

• 34

• 33

Which is the first negative term of the AP; 87, 82, 77, ........

• 19

• 18

• 17

• 20

If 2k-1, 3k+1, 5k+1 are in AP, then the value of k is

• 5

• 3

• 0

• 2

How many two digit numbers that are divisible by 3

• 30

• 32

• 29

• 28

Find the 10th term from the end of the AP; 17, 14, 11, ......... -40

• 0

• -13

• -10

• -16

The 11th term of the GP; 1/8, -1/4, 2, is

• -128

• 128

• 64

• -64

If (x-4), (x-1), and (x+5) are three consecutive terms of a GP; then find x

• 10

• 21

• 7

• 5

The 3rd term of an AP is 5 and 7th term is 9, then common difference is

• -2

• 2

• 3

• 1

Find the sum of the series 11+14+17+..............+50

• 520

• 427

• 550

• 410

• 6

• 3

• 1

• 7