$\mathrm{X}$ bullocks and $\mathrm{Y}$ tractors take 8 days to plough a field. If we halve the number of bullocks and double the number of tractors, it takes 5 days to plough the same field. How many days will it take $\mathrm{X}$ bullocks alone to plough the field?

(A) 30

(B) 35

(C) 40

(D) 45

$\mathrm{X}$ bullocks and $\mathrm{Y}$ tractors take 8 days to plough a field. If we halve the number of bullocks and double the number of tractors, it takes 5 days to plough the same field. How many days will it take $\mathrm{X}$ bullocks alone to plough the field?

(A) 30

(B) 35

(C) 40

(D) 45

127