Quiz Discussion

The simplest value of \(\left( {\frac{1}{{\sqrt 9 - \sqrt 8 }} - \frac{1}{{\sqrt 8 - \sqrt 7 }} + \frac{1}{{\sqrt 7 - \sqrt 6 }} - \frac{1}{{\sqrt 6 - \sqrt 5 }}} \right)\)          is = ?

 

Course Name: Quantitative Aptitude

  • 1]

    \(3 - \sqrt 5 \)

  • 2]

    3

  • 3]

    \(\sqrt 5 \)

  • 4]

    \(\sqrt 5 - 3\)

Solution
No Solution Present Yet

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# Quiz
1
Discuss

( √5 – 2)^2 = x – √80

  • 1]

    9

  • 2]

    7

  • 3]

    6

  • 4]

    10

Solution
2
Discuss

A sum of Rs. 1360 has been divided among A, B and C such that A gets 2/3 of what B gets and B gets 1/4 of what C gets. B's share is:

 

  • 1] Rs. 120
  • 2] Rs. 160
  • 3] Rs. 240
  • 4] Rs. 300
  • 5] None of these
Solution
3
Discuss

If the sum of two numbers is 22 and the sum of their squares is 404, then the product of two numbers is = ?

  • 1] 40
  • 2] 44
  • 3] 80
  • 4] 88
Solution
4
Discuss

The least number that must be subtracted from 63522 to make the result a perfect square is = ?

  • 1] 18
  • 2] 20
  • 3] 24
  • 4] 30
Solution
5
Discuss

(36.14)^2 – (21.28)^2 =?

  • 1]

    850

  • 2]

    860

  • 3]

    865

  • 4]

    853

Solution
6
Discuss

If \(\frac{p}{a} + \frac{q}{b} + \frac{r}{c} = 1\)     and \(\frac{a}{p} + \frac{b}{q} + \frac{c}{r} = 0\)     where a, b, c, p, q, r are non-zero real numbers, then \(\frac{{{p^2}}}{{{a^2}}} + \frac{{{q^2}}}{{{b^2}}} + \frac{{{r^2}}}{{{c^2}}}\)    is equal to = ?

 

  • 1] 0
  • 2] 1
  • 3] 3
  • 4] 9
Solution
7
Discuss

There are two examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:

  • 1] 20
  • 2] 80
  • 3] 100
  • 4] 200
  • 5] None of these
Solution
8
Discuss

\(\frac{{{{\left( {a - b} \right)}^2} - {{\left( {a + b} \right)}^2}}}{{ - 4a}}{ \text{ = }}\frac{x}{y}\)     On simplifying the given equations, which of the following equations will be obtained ?

 

  • 1] xy = b
  • 2] bx = y
  • 3] ab = x
  • 4] yb = x
  • 5] ay = x
Solution
9
Discuss

64^12 / 4^15 = 64^x

  • 1]

    6

  • 2]

    5

  • 3]

    4

  • 4]

    7

Solution
10
Discuss

The lowest temperature in the night in a city is one third more than 1/2 the highest during the day. Sum of the lowest temperature and the highest temperature is 100 degrees. Then what is the lowest temperature?

 

  • 1] 30 degrees
  • 2] 40 degrees
  • 3] 36 degrees
  • 4] None of these
Solution
# Quiz