Question

There are c counters in a box

11 of the counters are green

Benedict takes out 20 counters at random from the box
4 of these counters are green

Work out an estimate for the value of c​

Answer 1

The answer to your problem is, There are total 55 counters out of which 11 are green and 44 are other color.

Explanation:

This is a ratio and proportion question. There are c amount of counters in the box

same ratio as in the box

Green : total

4: 20

11: x

Use cross product rule

x * 4= 20 *11

x= 20*11/4

x= 55. Which is the answer.

So there are total 55 counters out of which 11 are green and 44 are other color. Benedict take 20 counters out of which 4 are green.

Thus the answer to your problem is, There are total 55 counters out of which 11 are green and 44 are other color.