download Mastguru Android App

Question Detail

How many terms are there in 2,4,8,16,....,1024

  • 7
  • 8
  • 9
  • 10

Answer: Option D

Explanation:

It is a GP. with r = 2, ie 21,22,23...


If number of terms is n. Then,
2×2n−1=1024
=>
2n−1=512

or 2×2n−1=29

so n-1 = 9 => n = 10

Similar Questions :

1. A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as remainder. The number is

  • 22030
  • 220030
  • 23030
  • 24030

Answer: Option B

Explanation:

(555 + 445) * 2 * 110 + 30 = 220000 + 30 = 220030

2. What is the unit digit in
(6324)1797×(615)316×(341)476

  • 1
  • 5
  • 7
  • 0

Answer: Option D

3. 469157 * 9999

  • 1691100843
  • 4591100843
  • 4691100843
  • 3691100843

Answer: Option C

Explanation:

469157 * (10000 - 1)
= 4691570000 - 469157
= 4691100843

4. Simplify (212 * 212 + 312 * 312 )

  • 132288
  • 142088
  • 142188
  • 142288

Answer: Option D

Explanation:

Trick: Above equation can be solved by using following formula
(a2+b2)=12((a+b)2+(a−b)2)

5. What least number should be added to 1056, so that the sum is completely divisible by 23

  • 4
  • 1
  • 2
  • 3

Answer: Option C

Explanation:

(1056 / 23) gives remainder 21

21 + 2 = 23, So we need to add 2

Read more from - Numbers Questions Answers
Post a comment

    Mastguru Youtube Channel

    Videos @mastguru

    Free useful videos - Subscribe Mastguru
     

    Get Free Current Affairs and Govt Jobs Alerts in your mailbox

    To Appreciate Our Effort, Please Like Us

    Quantitative Aptitude
    English Aptitude
    Reasoning Aptitude
    Computer Awareness
    General Knowledge
    Current Affairs
    IT Officer Aptitude
    Programming Aptitude
    Latest Govt Jobs