Question

During morning walk, a man covers a distance of 3 km, 4 kin, 3.5 kın, km and 4.5 km from Monday to Friday,
respectively. How much distance should he cover on two more days, so that his average per week becomes 4 km per day
A. 4
B. 8
C. 5
D. 6​

Answer 1

Step-by-step explanation:

let the distance be x.Then,

average=sum of all numbers/quantities of all number

(3+4+3.5+4.5+x)km/7=4

= 15+x/7=4

= 15+x=4×7

= 15+x=28

=x=28-15

x=13