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Re: Algebra Problem
by TG Team - Sunday, 5 October 2014, 05:17 PM
  Hi

S1: 2a, b, a, c, 2a + 20

S2: b - 2a, a - b, c - a, 2a + 20 - c

b - 2a + 30 = a - b i.e. 3a - 2b = 30
a - b + 30 = c - a
c - a + 30 = 2a + 20 - c i.e. 3a - 2c = 10

Solving them, we get a = 50, b = 60, c = 70

So series S1: 100, 60, 50, 70, 120
and series S2: -40, -10, 20, 50, 80

Now you can easily answer all the questions easily. smile

Kamal Lohia