# Quiz Discussion

If a + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:

Course Name: Quantitative Aptitude

• 1] 1
• 2] 2
• 3] 3
• 4] 4
##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

The sum of first n odd natural numbers in

• 1] 2n - 1
• 2] 2n + 1
• 3] n2
• 4] n2 - 1
##### Solution
2
Discuss

If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be

• 1] 0
• 2] 1
• 3] 2
• 4] -1
##### Solution
3
Discuss

If a + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:

• 1]

1

• 2]

2

• 3]

3

• 4]

4

##### Solution
4
Discuss

How many terms are there in 20, 25, 30 . . . . . . 140?

• 1] 22
• 2] 25
• 3] 23
• 4] 24
##### Solution
5
Discuss

Which term of the A.P. 24, 21, 18, ............ is the first negative term?

• 1] 8th
• 2] 9th
• 3] 10th
• 4] 12th
##### Solution
6
Discuss

Which term of the A.P. 92, 88, 84, 80, ...... is 0?

• 1]

23

• 2]

32

• 3]

24

• 4]

28

##### Solution
7
Discuss

If 18, a, b - 3 are in A.P. then a + b =

• 1] 19
• 2] 7
• 3] 11
• 4] 15
##### Solution
8
Discuss

The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is

• 1]

10

• 2]

11

• 3]

12

• 4]

13

##### Solution
9
Discuss

Find the 15th term of the sequence 20, 15, 10 . . . . .

• 1] -45
• 2] -55
• 3] -50
• 4] 0
##### Solution
10
Discuss

A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third day and so on. How much will the boy get if he started working on the 1st of February and finishes on the 20th of February?

• 1] 220
• 2] 220 -1
• 3] 219 -1
• 4] 219
• 5] None of these
# Quiz