If the 225% is equal to

225% is equal to
(a) 2 : 3
(b) 3 : 2
(c) 4 : 9
(d) 9 : 4

Solution:

If 30% of x is 72, then x is equal to
(a) 120
(b) 240
(c) 360
(d) 480

Solution:

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