Question

A TV program is edited for broad casting and 17% of the original program is cut.
The programme is now one and a half long. How long is the original program?

Answer 1

If original program is x hours long we have the equation-
x - 0.17x = 1.5
0.83x = 1.5
x = 1.5 / 0.83 = 1.81 hours long   ( about 1 hour 49 minutes) Answer