Answer:
36 days
Step-by-step explanation:
for these type of questions, its advisable to find L.C.M and solve it.
L.C.M of 12 and 9 is 36.
so the next time she will have both test on the same day will be in 36 days.
30%
2000-----100%
1400------x%
x=(1400×100)÷2000
X=70%
final we go 100%-70%=30%
Television price reduced for 30%
work pictured and shown
B