Question 1198514
Cost = variable +fixed

let x be the number of units produced to make a profit of 60000

(C) = 80000+6x

(R) = 10x

(P)= 10x -(6x+80000)= 60000

== > 4x 140000

==> x =140000/4

= 35000 units

For breakeven (R)-(C) =0