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Asked by Harshaditya Kaushal

Apr 14, 2013

#### Q1 find the least number which must be added to 7900 to obtain a perfect square?Q2 find the least number which must be subtracted from 2509 to make it a perfect square?



first find the square root of 7900.
by prime factorisation method
quotient+i 2=88+1=89...

Asked by Sunil

Sep 18, 2014

#### What is the fullform of CPCT ?



Corresponding parts of Congruent Triangles.

Asked by Upender

Aug 4, 2013

#### LINEAR EQUATIONS IN A FRACTION , TWICE THE NUMERATOR IS 2 MORE THAN THE DENOMINATOR. IF 3 IS ADDED TO THE NUMERATOR AND TO THE DENOMINATOR, THE NEW FRACTION IS 2/3. FIND THE ORIGINAL FRACTION.



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Asked by Srija

Dec 8, 2013

#### please suggest a good hindi poem for my hindi recitation competition



Answer.

Select a poem on humanity and brotherhood .

Asked by Astha Mohanty

May 29, 2015

#### Five years ago a man was seven times as old as his son. Five years hence, the father will be three times as old as his son. Find their present ages.



Answer.

Let the past age of son = x
Let the past age of father = 7x
So,
Present ages are x+5 and 7x+5
Future age of son = x+10
Future age of father = 7x+10

Asked by Manish

Feb 18, 2015

#### Find the compound interest on Rs 4000 for 2.5 years at 10% per annum.



Principal(P)  = Rs 4000

Ra...

Asked by Sheron

Aug 11, 2013

#### construct a rhombus of diagonals 6.4 and 5.2



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Asked by Gurnoor kaur Dang

Jan 5, 2014

#### Q1. a 20 cm long iron pipe has exterior diameter equal to 25 cm. if the thickness of the pipe is 1 cm, find the whole surface area of the pipe .     Q2. the areas of 3 adjacent faces of a cuboid are x,y,z.if d volume is V.prove V2=XYZ. Q3. the rainwater which falls on the roof 18m long n 16.5 m wide is stored in a cylindrical tank of radius 4 m. if it rains 10 on a day, wat is d rise in d water level in d tank due to it ?



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Asked by Nahan

Oct 28, 2013

#### Sum of the digits of a 2 digit number is 9 when we interchange the digits it is found that the resulting new number is greater than the orginal nimber by 27 ? what is 2 dear teacher am really confused with these kinda question would you like to help me solve this in a easy way ... hope you willl



Assume the digit in ones place as x and the digit in tens place is y
The original number is (10y + x)
Number obtained by reversing the digits = (10x + y)
Now check for the condition
...

Asked by Gurnoor kaur Dang

Nov 10, 2013



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