In a morning walk three persons step off together, their steps measure 80 cm 85 cm and 90 cm

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In a morning walk three 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 he can cover the distance in complete steps?

A circular field has a circumference of 360 km. Three cyclist start together and can cycle 48,60 and 72 km a day, round the field. When will they meet again?
   • A circular field has a circumference of 36...  

If a=2^2 x 3^x, b=2^2 x 3 x 5, c=2^2 x 3 x 7 and LCM(a,b,c)=3780 Find x value / Real Numbers Class 10
   • If a=2^2 x 3^x, b=2^2 x 3 x 5, c=2^2 x 3 x...  

Let a and b be two positive integers such that a=p3q4 and b=p2q3, where p and q are prime numbers, such that HCF(a,b)=p^mq^n and LCM(a,b) =p^rq^s,then (m+n)(r+s) is equal to
   • Let a and b be two positive integers such ...  

Find GCF and LCM using prime factorization / How to find the greatest common factor and least common multiple
   • How to find HCF & LCM using factor tree me...