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Asked by Hyadarani

Apr 15, 2014

Show that one and only one out of n,n+2,n+4 is divisible by 3, where n is any positive integer.

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Answer (2)

Asked by Yash Ukas

Jan 18, 2015

What are the values of log from 1 to 10?

log 1 = 0

Answer (3)

Find the greatest 6 digits number exactly divisible by 24, 15,and 36.

Answer.

We will find out the LCM of 24,15 and 36 is 360.

Now, greatest 6-digit number is 999999.

Now, We will divide this number by LCM of 24,15 and 36, we will get,

9999...

Answer (2)

Asked by Pragasam Ravi

May 22, 2015

Find the largest number which divide 615 and 963 leaving remainder 6 in each case.

Answer.

To find the largest number which divides 615 and 963 leaving remainder 6 in each case i.e. HCF.

Consider HCF be x.

In order to make 615 and 963 completely divisible by x, w...

Answer (2)

Asked by Sparsh

Apr 27, 2015

Prove that the product of three consecutive positive integer is divisible by 6.

Answer.

Let us three consecutive  integers be, n, n + 1 and n + 2.
Whenever a number is divided by 3 the remainder obtained is either 0 or 1 or 2.
let n = ...

Answer (2)

Asked by Om Parkash

Sep 9, 2014

1] What is the smallest number that when divided by 35, 56, 91 leaves a remainder 7 in each case?                    

2] Determine the number nearest to 110000 but greater than 100000 which is exactly divisible by each of 8, 15 and 21.                                                                                                                                              

3] A circular field has a circumfrence of 360 km. Three cyclists start together and can cycle 48 km, 60 km and 72 km a day, round the field. When will they meet again?

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Answer (2)

Asked by Preity Veronica

Aug 16, 2014

If 'n'is an odd positive integer, show that (n2-1) Is divisible by 8??

Answer.

If 'n' is an odd positive integer, show that (n2-1) Is divisible by 8??
 
Any odd positive integer is in the form of 4p + ...

Answer (2)

Asked by Nimmi Mary

Jul 16, 2013

A rectangular courtyard is 18m 72cm long and 13m 20cm broad. It is to be paved with square tiles of the same size. Find the leat possiable no. of such tiles.

4290 tiles

Answer (9)

Asked by Syed

Aug 26, 2013

Prove that if x and y are odd positive integers, then x2 + y2 is even but not divisible by 4

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Answer (2)

Asked by Meghasri s

Sep 7, 2013

Prove that root 5 is irrational

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Answer (4)

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