Question

The average height of child in a group of 5 is 1 m 10 cm. If the 6th child's height is 1 m 40 cm, find the new average of a child
in a group of
6.​

Answer 1

Given:

The average height of child in group of 5 is 1m 10cm.

If the 6th child join the group and height is 1m 40cm.

To find:

The new average of the child in the group of 6.

Solution:

The average of 5 child = 1.10

The average of 6th child = 1.40

Now, we need to find the total average of the 6 child.

= 1.10+1.10+1.10+1.10+1.10+1.40

= 6.9

Here, the average of 6 child = $\frac{6.9}{6}$

                                               = 1.15

The new average of 6 student = 1m 15cm.

Answer 2

Step-by-step explanation:

1m =100cm.

1m 10çm=100b