Quiz Discussion

If the sums of n terms of two arithmetic progressions are in the ratio $$\frac{{3n + 5}}{{5n + 7}}$$   then their nth terms are in the ration

Course Name: Quantitative Aptitude

• 1]

$$\frac{{3n - 1}}{{5n - 1}}$$

• 2]

$$\frac{{3n + 1}}{{5n + 1}}$$

• 3]

$$\frac{{5n + 1}}{{3n + 1}}$$

• 4]

$$\frac{{5n - 1}}{{3n - 1}}$$

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Find the first term of an AP whose 8th and 12th terms are respectively 39 and 59.

• 1] 5
• 2] 6
• 3] 4
• 4] 3
• 5] 7
Solution
2
Discuss

The first term of an Arithmetic Progression is 22 and the last term is -11. If the sum is 66, the number of terms in the sequence are:

• 1]

9

• 2]

10

• 3]

11

• 4]

12

Solution
3
Discuss

The common difference of the A.P. $$\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}$$   . . . . . . is

• 1]

$$\frac{1}{3}$$

• 2]

$$- \frac{1}{3}$$

• 3]

-b

• 4]

b

Solution
4
Discuss

The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is

• 1] 600
• 2] 765
• 3] 640
• 4] 680
• 5] 690
Solution
5
Discuss

If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___

• 1]

5/2

• 2]

log25

• 3]

log32

• 4]

3/2

Solution
6
Discuss

If 18th and 11th term of an A.P. are in the ratio 3 : 2, then its 21st and 5th terms are in the ratio

• 1] 3 : 2
• 2] 3 : 1
• 3] 1 : 3
• 4] 2 : 3
Solution
7
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
8
Discuss

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

• 1] 23
• 2] 32
• 3] 22
• 4] 24
Solution
9
Discuss

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

• 1] 68
• 2] 156
• 3] 142
• 4] 242
Solution
10
Discuss

The common difference of the A.P. $$\frac{1}{{2b}} \frac{{1 - 6b}}{{2b}} \frac{{1 - 12b}}{{2b}}$$   . . . . . is

• 1] 2b
• 2] -2b
• 3] 3
• 4] -3
# Quiz