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  • Find the least number which when increased by 4 is divisible by each of the numbers 10,15,20,25.

Find the least number which when increased by 4 is divisible by each of the numbers 10,15,20,25.

Answers (1)

10=2x5

15=2x3 

20=2x2x5

25=5x5

LCM(10,15,20,25) = 2x2x3x5x5
                              =300
Let the number be the x 
According to the question

     x+4=300
       x=296
Therefore the least number which when increased by 4 is divisible by each of the numbers 10,15,20,25 is 296.

Posted by

Ravindra Pindel

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