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Prabhu

Sep 16, 2013



Mehnaaz

Nov 12, 2014



Harjee

May 17, 2014

923*985 DIVISIBLE BY 11 FIND THE MISSING DIGIT



Solution:
Let the missing digit in the given number = n
By the divisibility rule of 11
If the difference of the sum of digits at odd places is eq...

Surinder Kumar

Sep 30, 2015



Mehnaaz

Nov 12, 2014

In a morning walk, 3 persons step off together. Their steps measure 80 cm, 85 cm and 90 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps?



Minimum distance that each should walk = LCM of 80, 85 and 90.
80 = 2 x 2 x 2 x 2 x 5
85 = 17 x 5
90 = 2 x 3 x 3 x 5
LCM = 2 x 2 x 2 x 2 x 3 x 3 x 5...

Vaibhav Choudhary

Aug 7, 2013

Write the smallest 4 digit number and express it in terms of prime factors.



The smallest four digit niumber 1000
1000= 23X53    &#...

Jitendriya Dash

Mar 28, 2016

what are co-prime numbers?



Co-prime numbers are the  set of numbers which have only 1 as their common factor i.e their HCF is 1. Co-prime numbers are also known as relatively prime or mutually prime num...

Shashank

Oct 2, 2015

HCF OF 15 AND 25



HCF of 15 and 25 is 5

Manmeet Kaur

May 11, 2015

Simplify: 45 + 3{34 - 18 - 14} / 3{17 + 3 of 4 - (2 of 7)}



45 + 3{34 - 18 - 14} / 3{17 + 3 of 4 - (2 of 7)}

= 45 + 3{2} / 3{17 + 3 of 4 - 14}

= 45+6   / 3{17 + 12 - 14}

= 51 / 3{29 - 14}

= 51 / 3{15}...

Jatin Dholakia

May 21, 2010

Find the largest number which divides both 258 and 584 leaving remainders 6 and 8 respectively



Given that when 258 is divided by the number the remainder is 6
Similarly, when 584 is divided by the same number the remainder is 8.
The largest number which divides (258  6) and (584  8) is th...

Prabhu

Sep 16, 2013



Mehnaaz

Nov 12, 2014



Harjee

May 17, 2014

923*985 DIVISIBLE BY 11 FIND THE MISSING DIGIT



Solution:
Let the missing digit in the given number = n
By the divisibility rule of 11
If the difference of the sum of digits at odd places is eq...

Surinder Kumar

Sep 30, 2015



Mehnaaz

Nov 12, 2014

In a morning walk, 3 persons step off together. Their steps measure 80 cm, 85 cm and 90 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps?



Minimum distance that each should walk = LCM of 80, 85 and 90.
80 = 2 x 2 x 2 x 2 x 5
85 = 17 x 5
90 = 2 x 3 x 3 x 5
LCM = 2 x 2 x 2 x 2 x 3 x 3 x 5...

Vaibhav Choudhary

Aug 7, 2013

Write the smallest 4 digit number and express it in terms of prime factors.



The smallest four digit niumber 1000
1000= 23X53    &#...

Jitendriya Dash

Mar 28, 2016

what are co-prime numbers?



Co-prime numbers are the  set of numbers which have only 1 as their common factor i.e their HCF is 1. Co-prime numbers are also known as relatively prime or mutually prime num...

Shashank

Oct 2, 2015

HCF OF 15 AND 25



HCF of 15 and 25 is 5

Manmeet Kaur

May 11, 2015

Simplify: 45 + 3{34 - 18 - 14} / 3{17 + 3 of 4 - (2 of 7)}



45 + 3{34 - 18 - 14} / 3{17 + 3 of 4 - (2 of 7)}

= 45 + 3{2} / 3{17 + 3 of 4 - 14}

= 45+6   / 3{17 + 12 - 14}

= 51 / 3{29 - 14}

= 51 / 3{15}...

Jatin Dholakia

May 21, 2010

Find the largest number which divides both 258 and 584 leaving remainders 6 and 8 respectively



Given that when 258 is divided by the number the remainder is 6
Similarly, when 584 is divided by the same number the remainder is 8.
The largest number which divides (258  6) and (584  8) is th...

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