Question

which successive discount offer is better 1)30% and 70%, 2) 60% and 40% 3)50% and50% 4)80%and20

Answer 1

by the 1st option
if we give 30% of discount on 100
it will be 70remaining
after giving 70% discount only 21 remains .....

2.by the 2nd option...
if we give 60% discount on 100
we will be with 40rs
and after giving again 40%
we will left with 36rs

3. by this option
if we give 50% discount on 100
we will be left with 50rs
and after giving again 50% discount we will be left with 25rs ..

4.if we choose this option we will give 80% discount and we will left with 20rs...
after giving 20% again we will be left with rs 16 rs...

so the greatest discount in the option 4. .........

I hope it will help you......
think differently....
be brainly

Answer 2

80% and 20% is the best discount. (Option 4 is the right answer)

Given,

Successive Discount rates

To Find,

The best discount

Solution,

Let us solve each option and then check.

Let the amount before the discount be 'x'

1) 30% and 70%

Initial amount = x

First discount = 30% of x

First discount = 30/100 * x

First discount = 0.3x

Price after 1st discount = x - 0.3x

Price after 1st discount = 0.7x

Second discount = 70% of 0.7x

Second discount = 70/100 * 0.7x

Second discount = 0.49x

Final price = 0.7x - 0.49x

Final price = 0.21x

2) 60% and 40%

Initial amount = x

First discount = 60% of x

First discount = 60/100 * x

First discount = 0.6x

Price after 1st discount = x - 0.6x

Price after 1st discount = 0.4x

Second discount = 40% of 0.4x

Second discount = 40/100 * 0.4x

Second discount = 0.16x

Final price = 0.4x - 0.16x

Final price = 0.24x

3) 50% and 50%

Initial amount = x

First discount = 50% of x

First discount = 50/100 * x

First discount = 0.5x

Price after 1st discount = x - 0.5x

Price after 1st discount = 0.5x

Second discount = 50% of 0.5x

Second discount = 50/100 * 0.5x

Second discount = 0.25x

Final price = 0.5x - 0.25x

Final price = 0.25x

1) 80% and 20%

Initial amount = x

First discount = 80% of x

First discount = 80/100 * x

First discount = 0.8x

Price after 1st discount = x - 0.8x

Price after 1st discount = 0.2x

Second discount = 20% of 0.2x

Second discount = 20/100 * 0.2x

Second discount = 0.04x

Final price = 0.2x - 0.04x

Final price = 0.16x

Hence, 80% and 20% is the best discount.

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