March 26, 2010

Find the least number



Find the least number which when divided by 35, leaves remainder 25;
when divided by 45, leaves remainder 35 and
when divided by 55, leaves remainder 45 ?

5 comments:

  1. 3455 yo!!
    since 35, 45 and 55 leaves reminder -10

    find lcm of 35 45 and 55 then subtract 10 from it

    though i got the answer but still the concept of using lcm is not clear to me

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  2. @Mac , lcm will give us the number div. by all three. subtract 10 and we'll get the corresponding remainders

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