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 = ?
\(3  \sqrt 5 \)
3
\(\sqrt 5 \)
\(\sqrt 5  3\)
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1
Discuss

( √5 – 2)^2 = x – √80
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:
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 = ?
Solution 
4
Discuss

The least number that must be subtracted from 63522 to make the result a perfect square is = ?
Solution 
5
Discuss

(36.14)^2 – (21.28)^2 =?
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 nonzero real numbers, then \(\frac{{{p^2}}}{{{a^2}}} + \frac{{{q^2}}}{{{b^2}}} + \frac{{{r^2}}}{{{c^2}}}\) is equal to = ?
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:
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 ?
Solution 
9
Discuss

64^12 / 4^15 = 64^x
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?
Solution 
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