Question

The average rainfall for three month is 12 cm if rainfall for the first two month is 13 cm and 15 cm respectively find the rainfall for third month.

Answer 1

Answer:

Let the rainfall of that month be x cm

so,

(13+15+x)/3= 12

or, 28+x= 36

or x= 8cm

Answer should be 8cm

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Answer 2

Answer:

let the rainfall of third month be Xcm

now

13+15+x

12= ————

3

36= 28+x

x=36-28

x=8cm

hence the rainfall of third month is 8cm

Step-by-step explanation:

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