Question

The average weight 20 toffees is 300 grms if the toffees are put in a box it is observe that the average weight is increased by 0.15 grms what is the weight of the box

Answer 1

Weight of box is 303.15 gm.

Given:

• The average weight 20 toffees is 300 gm.
• If the toffees are put in a box it is observe that the average weight is increased by 0.15 gm.

To find:

• What is the weight of the box?

Solution:

Concept/formula to be used:

Average=Sum of all numbers/Total numbers

Step 1:

Find the total weight of 20 toffees.

Average weight of 20 toffees is 300 gm.

$300 = \frac{Sum \: of \: weight \: of \: 20 \: toffees}{20}$

or

Total weight of 20 toffees= 300×20

or

Total weight of 20 toffees= 6000 gm

Step 2:

Find the total weight of toffees with box .

Average weight= 300.15 gm

Total items= 21

Weight of box and toffees=$300.15 \times 21$

or

Weight of box and all toffees=6303.15 gm

Step 3:

Find the weight of box.

Weight of box=6303.15-6000

or

Weight of box= 303.15 gm

Thus,

Weight of box= 303.15 gm

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