Simplify

Options
a) 25.5
b) 28.7
c) 23.6
d) 30.2

Solution

As per question

Let the
a = 8.3
b = 9.2
c = 6.1

a³+b³+c³-3abc = (a+b+c)(a²+b²+c²-ab-bc-ca)
= (a+b+c)
Put value in (a+b+c)
8.3+9.2+6.1 = 23.6

Answer: c) 23.6