Question

A number when decreased to 270 is decresed by 10% find the number

Answer 1

Answer:

-27

Step-by-step explanation:

New value =

270 - Percentage decrease =

270 - (10% × 270) =

270 - 10% × 270 =

(1 - 10%) × 270 =

(100% - 10%) × 270 =

90% × 270 =

90 ÷ 100 × 270 =

90 × 270 ÷ 100 =

24,300 ÷ 100 = 243

270 decreased by 10% = 243

Absolute change (actual difference):

243 - 270 = - 27

Answer 2

Answer:

296.70

Step-by-step explanation:

x-270=x-10/100*x

=x-270=(10x-x)/100

x-270=9x/100

x-9x/100=270

91x=27000

x=27000/91

=296.70