Question

The first 4 days of the week saw an average of 12 cm of rain.
It rained an average of 14 cm for the next 3 days. What is the average rainfall for the week?​

Answer 1

Answer:

4+3+12

Step-by-step explanation:

Answer 2

Answer:

I think that

Firstly we have to find the average day's

Therefore, the average day's= (4+3)/2

= 7/2

=3.5 days

Therefore, no. of day's in a week= 3.5×2

=7 days

Since

Average= Sum of no. of days/No. of observations

So, Average rainfall in first four days = 12 cm

and,

Average rainfall in next three days = 14cm

Therefore, Average of 3.5 days = 12 + 14/2

= 26/2

= 13 cm

So, in 7 days average rainfall = 13×2

= 26cm