? 2A = 3B and 4B = 5C
? 8A = 12B and 12B = 15C
? 8A = 12B = 15C = x
? A = x/8, B = x/12, C = x/15
So, A : C = x/8 : x/15 = 15 : 8
The shaded region represents
y ? x
Let 45 x A = (25 x 900)/100
? A = (25 x 9)/45 = 5
CP = [100/(100 - Loss%) ] x SP
CP = 6000 x (100/75) = 8000
NA
Angle swept in 30 min= 180°
Area swept = [(22/7) x 7 x 7] x [180°/360°] cm2
= 77 cm2
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