Question
There are three distinct numbers ‘d’, ‘e’ and
‘f’. If, d = 120, (d + e) = 420 and (f – e) = 60, then find the average of d, e and f.Solution
Given, d = 120, (d + e) = 420 and (f – e) = 60Therefore, e = 420 – 120 = 300And, f = 300 + 60 = 360Required average = (120 + 300 + 360)/3 = 780/3 = 260
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