Question

Which is more-successive discount of 40 of 30 or flat 70?

Answer 1

according to me its flat 70 discount. ...

Answer 2

Answer: We can see that 70% is more.

Step-by-step explanation:

Since we have given that

Successive discount of 40 and 30

Let x = 40

y = 30

As we know the formula for successive discount:

$x+y-\frac{xy}{100}\\\\=40+30-\frac{40\times 30}{100}\\\\=70-12\\\\=58\%$

And flat discount of 70%.

∴ 58 % < 70%

So, we can see that 70% is more.