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#2766 Foreign Student As A Candidate

Posted Sonada12 on 28 March 2014 - 12:27 PM

Hello Sir,
I would like to know that whether a foreign student(suppose studying in Saudi Arabia and born in USA) can write the cbse board exams as a private candidate in his foreign country i.e., Saudi Arabia the succeeding year, if he fails his board exams in his current year ?


#2146 The surface area of a cube is 54 sq. inches. What is the volume of the cube,...

Posted amar on 19 September 2013 - 11:17 AM

Given the surface area of cube as 54 sq inches.
Surface Area of a Cube = 6 a 2
54 = 6 a 2            
54/6 = a 2
9 = a 2                        // take square root on both side   //
√9 =a 2
3 =a
Volume of cube = a 3
= 3 3
=27 inches


#2034 If npn =5040 Find n

Posted amar on 17 September 2013 - 06:24 AM

Given nPn = 5040

nPn = 5040 // find the multiple of 5040 //
n! = 1*2*3*4*5*6*7
n! = 7!
Therefore  n = 7