Problems on H.C.F and L.C.M
Three friends Raju , Ramesh and Sunil start running around a circular stadium and complete a single round in 24 s, 36 s and 40 s, respectively. After how many minutes will they meet against at the sta

5 minutes
8 minutes
7 minutes
6 minutes

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Problems on H.C.F and L.C.M
What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

420
540
630
770

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP