Question

Sohan bought 4 pencils at Rs 3.20. Each and another 8 pencils at Rs 2.80 each. Find the avrage price of pencil.​

Answer 1

Step-by-step explanation:

avg. price = 3.20+2.80 ÷ 4+8

= 6 ÷ 12

=0.5

= 50 paise

Answer 2

The average price of pencil is Rs.2.93

Step-by-step explanation:

Sohan bought 4 pencils at Rs 3.20 each

Cost of 4 pencils =$3.20 \times 4 = Rs.12.8$

Cost of another 8 pencils at Rs 2.80 each.

Cost of 8 pencils = $2.80 \times 8 =Rs.22.4$

Total no. of pencils = 4+8=12

$Average = \frac{\text{Sum of all observations}}{\text{No. of observations}}$

Average =$\frac{12.8+22.4}{12}=2.93$

Hence the average price of pencil is Rs.2.93

#Learn more:

Find the average of 12 number if first 8numbers average is 21 find the average of last 4 numbers

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