Question

There are less than 100 chairs in a seminar room. All these chairs are arranged in equal rows of either 9 or 12 chairs. The largest number of chairs in the seminar room is ​

Answer 1

Answer:

96

Step-by-step explanation:

Since its not said that equal rows AND COLUMNS

we can just find the multiple of either two i.e, 9 or 12 closest to 100

which means u can arrange chaira in 12 rows containing 8 chairs in each row.

there for 96 chairs.

Answer 2

Answer:

The largest number of chairs in the seminar room is ​99.

Step-by-step explanation:

Given: Chairs arranged in equal rows of

i)9

ii)12

To find: Maximum number of chairs.

Condition: Total number of chairs must be less than 100.

Let's consider the first condition,

If the number of chairs in a row is 9.

The multiples of 9 are,

9,18,27,36,45,54,63,72,81,90,99,108 and so on....

Out of these the largest number less than 100 is 99.

So maximum number of chairs will be 99.

Now, let us consider the second condition,

If the number of chairs in a row is 12

The multiples of 12 are,

12,24,36,48,60,72,84,96,108 and so on....

Out of these the largest number less than 100 is 96.

So maximum number of chairs with this arrangement will be 96.

the greater number of these both is 99, hence the largest number of chairs in the seminar room is ​99.