BASIC MATHEMATICS AND ELEMENTARY ALGEBRA:

A house worth 6.25M was given a discount rate of 20%. What additional rate of discount must be given to reduce the price to 4M?

Question

BASIC MATHEMATICS AND ELEMENTARY ALGEBRA:

A house worth 6.25M was given a discount rate of 20%. What additional rate of discount must be given to reduce the price to 4M?

parthkohli · Answer

$\Large \color{purple}{\rightarrow [6,250,000(1 - 0.20)] - 4,000,000 }$

anonymous · Answer

6.25*80/100*x/100=4
solve for x and it will give you 80 ..subtract it from 100 it will give 20..so additional 20% discountis needed

parthkohli · Answer

See, the thing within square brackets is the formula for discount, and then after you find it, then you have to subtract that to find the additional price.

parthkohli · Answer

Am I right?

anonymous · Answer

$$6.25 \times  (80/100) \times ((100 - x)/100) = 4 \implies x = 20$$

anonymous · Answer

i dont get the answer?

anonymous · Answer

are you looking for the answer only?

anonymous · Answer

no. i want to learn too, but i just dont get it