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rani = b
leni = c
a:b = 8:6
b = 4/5 c
b+18 = c
karena b = 4/5c,c = 5/4b
b+18 = 5/4b
1/4b = 18
b=72
72 = 4/5 c
c = 5/4 x 72 = 90
a : b = 8 : 6
a : 72 = 8 : 6
a = 8/6 x 92 = 96
santi + rani + leni = 96 + 72 + 90 = 258