Tin of biscuits come in three sizes. There are 28 biscuits in a small size and four times as many in the medium size. In the large size there are seven times as many as in small size how many biscuits are in the small and large size

There are 28 biscuits in a small size.

There are 112 biscuits in a medium size.

There are 196 biscuits in a large size.

Step-by-step explanation:

Tin of biscuits come in three sizes:

Small Medium Large

Let S denote biscuits in small size.

Let M denote biscuits in medium size.

Let L denote biscuits in large size.

There are 28 biscuits in a small size and four times as many in the medium size.

Mathematically,

S = 28

M = 4S

Substitute S = 28

M = 4 (28)

M = 112

In the large size there are seven times as many as in small size.

L = 7S

Substitute S = 28

L = 7 (28)

L = 196

Therefore,

There are 28 biscuits in a small size.

There are 112 biscuits in a medium size.

There are 196 biscuits in a large size.