Question

At a family reunion, each of Sana aunts and uncles is getting photographed once, The aunts are taking pictures in groups of5 and the uncles are taking pictures in groups of 10. If Sana has the same total number of aunts and uncles, what is the minimum number of aunts that Sana must have

Answer 1

Given : At a family reunion, each of Sana's aunts and uncles is getting photographed once. The aunts are taking pictures in groups of 5 and the uncles are taking pictures in groups of 10.

Sana has the same total number of aunts and uncles,

To Find : what is the minimum number of aunts that Sana must have?

Solution:

Uncles are taking picture in group of 10

Aunts are taking pictures in group.of 5

We need ro find LCM to find minimum number of aunts.

LCM of 5 and 10 is 10

Hence minimum number of aunts that sana must have is 10

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