### Poll Results

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Explanation:

(A + B)’s 1 day’s work = 1\20

(B + C)’s 1 day’s work = 1\30

(C + A)’s 1 day’s work = 1\40

On adding,

2(A + B + C)’s 1 day’s work

= 1\20+1\30+1\40

= 6+4+3\120 = 13\120

∴ (A + B + C)’s 1 day’s work

= 13\240

∴ A’s 1 day’s work

= 13\240 – 1\30 = 13−8\240

= 5\240 = 1\48

C’s 1 day’s work

= 13\240 – 1\20 = 13−12\240

= 1\240

= ∴ Required ratio = 48 : 240 or 1 : 5