Question

Find the single percentage discount which is equivalent to a discount of 20% followed by 25% followed by a 30% discount​

Answer 1

Answer:

100×

100

100−10

×

100

100−20

= 100×

100

90

×

100

80

=72

∴ Single discount =100−72=28%

Answer 2

Answer:

sorry don't know the answer