Question

In a hall there are 200 chairs.The chair number of Prathamesh is divisible by 9 and 7. What would be the chair number of prathamesh

Answer 1

28 and 22.............

Answer 2

Solution :-

In this question, we will have to find the LCM of 9 and 7 to find out the chair number of Prathamesh.

Prime factors of 9 = 3 × 3

Prime factors of 7 = 7 × 1

LCM of 9 and 7 = 3 × 3 × 7

= 63

So, LCM of 9 and 7 = 63

So, chair number of Prathamesh would be any multiple of 63, which should be less than 200, because there are 200 chairs in the hall.

Multiples of 63 = 63, 126 and 189

So, chair number of Prathamesh would be 63 or 126 or 189

Answer.