Question

7. A factory requires 28 machines to make some shirts in
20 days. If 4 mach
ines are not working properly, then
in how many days the remaining machines can make
the same number of shirts?​

Answer 1

Answer:

answer is given in the pic

Answer 2

28x20 = 4xy.

y=28x20by 4

y = 28x5

y = 140