Steve exercises by rollerblading. He skates

Question

4 kilometers on Mondays, 5 kilometers on Thursdays, 8 kilometers on Saturdays, and 10 kilometers on Sundays. If he clocked
17 kilometers for the week, on which days did he skate?

Answer 1

Let's assign variables to each day of the week:

Mondays: x
Tuesdays: y
Wednesdays: z
Thursdays: a
Fridays: b
Saturdays: c
Sundays: d

Given that Steve skates 4 kilometers on Mondays, 5 kilometers on Thursdays, 8 kilometers on Saturdays, and 10 kilometers on Sundays, we can set up the following equations:

x + a + c + d = 17
x = 4
a = 5
c = 8
d = 10

Substituting the known values into the equation, we have:

4 + 5 + 8 + 10 = 17
27 = 17

Since this equation is not true, there must be an error in the initial information or calculations.