Quiz Discussion

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:

Course Name: Quantitative Aptitude

  • 1]

    9

  • 2]

    10

  • 3]

    11

  • 4]

    12

Solution
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# Quiz
1
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
2
Discuss

The nth term of an A.P., the sum of whose n terms is Sn, is

  • 1] Sn + Sn - 1
  • 2] Sn - Sn - 1
  • 3] Sn + Sn + 1
  • 4] Sn - Sn + 1
Solution
3
Discuss

How many 2-digit positive integers are divisible by 4 or 9?

  • 1]

    32

  • 2]

    22

  • 3]

    34

  • 4]

    30

Solution
4
Discuss

The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is

  • 1]

    4

  • 2]

    1

  • 3]

    8

  • 4]

    6

Solution
5
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
6
Discuss

In an A.P., if d = -4, n = 7, an = 4, then a is

  • 1] 6
  • 2] 7
  • 3] 20
  • 4] 28
Solution
7
Discuss

The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is

  • 1]

    5

  • 2]

    10

  • 3]

    12

  • 4]

    14

Solution
8
Discuss

A piece of equipment cost a certain factory 6,00,000. If it depreciates in value, 15% the first year, 13.5% the next year, 12% the third year, and so on, what will be its value at the end of 10 years, all percentages applying to the original cost?

  • 1] Rs. 2,00,000
  • 2] Rs. 1,05,000
  • 3] Rs. 4,05,000
  • 4] Rs. 6,50,000
Solution
9
Discuss

The sum of first five multiples of 3 is:

  • 1] 45
  • 2] 65
  • 3] 75
  • 4] 90
Solution
10
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
# Quiz