A cassette hav tag price Rs 99 is sold for Rs 648 after 2 successive discount,if first discount is 10%,second?

Question

A cassette recorder having a tag price of Rs. 900 is sold for Rs 648 after two successive discounts. If the first discount was 10%, what was the second discount?
Options: (1) 8%, (2) 20%, (3) 12%, (4) 13%

Answer 1

10% of 900 = 90

900-90=810
810-648= 162

10% of 810 = 81
162/2 = 81 ANSWER: (2) 20%

Answer 2

After first discount of 10%, the cost of recorder becomes
=900-900*10/100
=900-90
=810

Actually sold at 648

second discount amount=810-648
=162

Second Discount in % = 162*100/810 =20%

Answer 3

900 after the 10% discount is
900 x 90% = 810

let y be the second discount,
810 - y = 648
810 - 648 = y
y = 162

so the second discount is 162
which is equal to,
(162/810) x 100 = 20%


answer (2) 20%

Answer 4

price of the recorder after first discount=90/100*900=810

final selling price =648
so further discount=810-648=162

so % of further discount=162/810*100=20%

option(2) is right

Answer 5

lets see====
900*(10/200) =90
after frst discont selin price= 900-90=810
second discount amount= 810-648=162
percentage discount= (162*100)/810=20

Answer 6

answer : 20%

after first discount: price = 900-90=810
second discount=810-648=162
162=20% of 810
thus, answer is 20%

Answer 7

first discount 10%

MRP=900

(900)10% = 810

(810-648)=162

162=(810)20%=648

so ans (2) 20%

Answer 8

(1 - 648/810)100% = 20%

Answer 9

P = 648 = 900 x (1-.10) x (1-D)

then

D = 1- (648/(900x.90)) = .20 = 20%

Answer 10

answer: (2) 20%