Progressions

Question 1

Calculate the arithmetic mean of the given series: 2, 6, 10, 14, 18, 22, 26, 30.

• 8

• 16

• 32

• None of the above

Question 2

Find the Sum of series: 2, 6, 10, 14, 18, 22, 26, 30

• 32
• 88
• 128
• 110

Question 3

Find the Arithmatic mean of series: 10, 7, 4, 1, -2

• 13/2

• 14/3

• 4

• 16/5

Question 4

Find the Sum of series: 10, 7, 4, 1, -2

• 40
• 21
• 20
• 18

Question 5

Find sum of series: 2, 2.5, 3, 3. 5, 4, 4. 5..........11

• 120

• 123.5

• 126.5

• 118.5

Question 6

Find Arithmetic Mean of series: 2, 2.5, 3, 3. 5, 4, 4. 5..........11

• 13/2
• 25/8
• 19
• 22/9

Question 7

Find the sum of series: 1, 3, 9, 27, 81, ..............3⁹

• [(1-3^(10))]/(1-3)

• 18

• 10

• 20

Question 8

Calculate the sum of given series: 1/3, 1/9, 1/27, 1/81.................

• 1/4

• 1/3

• 1/2

• 1

Question 9

For n positive integers, if their product is nⁿ, then what will be their sum?

• Equal to n+(1/n)

• Equal to n

• A negative integer

• Never less than n²

Question 10

A tennis ball is initially dropped from a building of height 180 m. After striking the ground, it rebounds (3/5)^th of the height from which it has fallen. 

Calculate the total distance that the ball traveled before it comes to rest.

• 540 m

• 600 m

• 900 m

• None of the above