19.99% of 449 + 24.88% of (199 + ?) =210.22
a) 190
b) 215
c) 175
d) 280
e) 110
Sol:
19.99% of 449 + 24.88% of (199 + ?) = 210.22
20 * 450 ÷ 100 + 25 * (200 + ?) ÷ 100= 210
90 + (200 + ?) ÷ 4 = 210
(200 + ?) = 120 * 4
200 + ? = 480
? = 280
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