The average of two numbers a and b 68 and the average of band c is 70 and that of a and c is 71 find the value of a,b,c
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A+B= 68 × 2= 136..........(i)
B+C= 70*2 = 140 ..........(ii)
A+C = 71*2 = 142 ..........(iii)
After solving equation (i).. (ii)..(iii)
A=69
B= 67
C= 73
B+C= 70*2 = 140 ..........(ii)
A+C = 71*2 = 142 ..........(iii)
After solving equation (i).. (ii)..(iii)
A=69
B= 67
C= 73
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