Late comer policy. If a worker comes late, Rs. 10/- will be charged and Rs. 5/- will be charges more on further lates. how much be charged if a worker is late 21 days?

Question

It is required to solve the problem through any formula

Answer 1

If D is the number of days late then, for D≥1 the charge C=10+5(D-1)=5+5D=5(D+1); for D<1, C=0.

For D=21, C=5*22=Rs110. 

If Rs5 is to be charged in addition to Rs10 on days after the first day, the formula is different: C=10+15(D-1) for D≥1. So C=10+15D-15=15D-5; C=5(3D-1). When D=21, C=5*62=Rs310. If D<1, C=Rs0.

Answer 2

You can cut his 21 days salery.