Question

A couple is sitting inside a marriage hall, in a row that can accommodate a maximum of six couples. On the right of this couple are two couples and on its left is a couple that has three couples to its right and one couple to its left. How many couples are sitting in the row?.

Answer 1

There are 5 couples are sitting in the row

How many couples are sitting in the row?.

The given parameters are

Maximum = 6 couples

In the hall, we have the following arrangements

First couple

Right = 2 couples

Left = 1 couple

Another couple

Left = 3 couple

Right = 1 couples

The left of the other couple is the right of the first couple

So, we have the following arrangements:

First couple (1)

Right = 2 couples

Left = 1 couple

Another couple

Right = 1 couples

The total number of couples is

Total = 1 + 2 + 1 + 1

Evaluate the sum

Total = 5

Hence, there are 5 couples are sitting in the row

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