Question

Find the number whose
(i)20% is 90
(ii)45% is 540
(iii)75% is 360
PLEASE HELP IT'S URGENT.
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Answer 1

Answer:

i)450

ii)1200

iii)480

Step-by-step explanation:

i) 20/100*x=90

x/5=90

x=450

ii)45/100*x=540

9x/20=540

x=540*20/9

x=1200

iii) 75/100*x=360

3x/4=360

x=360*4/3

x=480

Answer 2

Answer:

i) 450

ii) 1200

iii) 480

Step-by-step explanation:

i) suppose, the number is x

now, 20% of x is 90

=> x × (20/100) = 90

or, x = (90×100)/20

or, x = 450

Same method goes for the rests.

hope it helps