The marked price of an article is Rs 4,500. After allowing some percent of discount and levying 10% VAT it is sold at Rs 4,400, find the discount percent.

mp=4500

let discount %be x

sp=mp-discount %of mp=4500-x/100×4500=4500-45x

Step-by-step explanation:

sp with 10%vat=sp+vat%of sp

4400=4500-45x+10/100(4500-45x)

4400-4500=(-450x+(4500-45x)/10

-1000=(-450x+(4500-45x)

-1000-4500=-495x

495x=5500

x=5500/495=11.11%

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

1; 35 is the ratio

step-by-step explanation: