Question

A machine starts working in 45 minutes at temperature 60 how much time is required to work it at temperature 70

Answer 1

Answer:

52mins30sec

Step-by-step explanation:

to reach 60 the machine takes 45mins

for the machine to be at 1degree it takes

45/60mins ie 3/4 min

for rise in 10 degrees it takes( 3/4)*10 ie 7.5min ie 7mins30sec

therefore to reach 70 degrees

45mins +7mins 30sec=52mins 30sec