Let the rate be R% per annum.
Then,
1200 x (1 + R/100)2 = 1348.32
? (1 + R/100)2 =1348.32/1200 = 1.1236 = (1.06)2
? (1 + R/100) =1.06
? R/100 = 0.06
? R = 6%
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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