# Quiz Discussion

If an A.P. has a = 1, tn = 20 and sn = 399, then value of n is :

Course Name: Quantitative Aptitude

• 1] 20
• 2] 32
• 3] 38
• 4] 40
##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

The two geometric means between the number 1 and 64 are

• 1]

8 and 16

• 2]

2 and 16

• 3]

4 and 8

• 4]

4 and 16

##### Solution
2
Discuss

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?

• 1]

192

• 2]

230

• 3]

102

• 4]

204

##### Solution
3
Discuss

The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?

• 1] 25
• 2] 29
• 3] 21
• 4] 33
##### Solution
4
Discuss

Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is

• 1] 11
• 2] 3
• 3] 8
• 4] 5
##### Solution
5
Discuss

The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?

• 1]

56

• 2]

62

• 3]

65

• 4]

69

##### Solution
6
Discuss

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

• 1] 34
• 2] 28
• 3] 25
• 4] 31
##### Solution
7
Discuss

Sum of n terms of the series $$\sqrt 2 + \sqrt 8 + \sqrt {18} + \sqrt {32} +$$ ....... is

• 1]

$$\frac{{n\left( {n + 1} \right)}}{2}$$

• 2]

$$2n\left( {n + 1} \right)$$

• 3]

$$\frac{{n\left( {n + 1} \right)}}{{\sqrt 2 }}$$

• 4]

1

##### Solution
8
Discuss

What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?

• 1]

897

• 2]

1,64,850

• 3]

1,64,749

• 4]

1,49,700

##### Solution
9
Discuss

The 7th and 21st terms of an AP are 6 and -22 respectively. Find the 26th term

• 1] -34
• 2] -32
• 3] -12
• 4] -10
• 5] -16
##### Solution
10
Discuss

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

• 1] 22
• 2] 25
• 3] 23
• 4] 24
# Quiz