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If, a×4=e,therefore, a=e/4
b/4=e, b=4e
c+4=e, c=e-4
d-4=e, d= e+4
a+b+c+d =100......(1)
put the value of a,b,c and into equation (1).
we get,
(e/4)+4e+e-4+e+4 =100
(e/4)+6e =100
e(1+24) /4=100
e = 100*4/25
therefore, the value of 'e' is 16.
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