Problem: Four milkmen rented a pasture. A grazed 24 cows for 3 months, B 10 cows for 5 months, C 35 cows for 4 months and D 21 cows for 3 months. If A’s share of rent is Tk. 720, find the total rent of the field.
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Correct Answer: Ratio ofshares ofA, B, C, D= (24 x 3) : (10 x 5) : (35 x 4) : (21 x 3) = 72:50: 140163.
The sum oftheir ratio=72+50+140+63 =325 Tk.
Explanation:
Agrazed=24$\times$3 =72
Bgrazed=10$\times$5=50
C grazed= 35$\times$4 = 140
D grazed= 21$\times$3 = 63
Total number of cows is = 72 + 50 + 140 + 63 = 325
A’s share of rent for ‘72 cows is = 720 Tk.
A’s share rent for 1 cow is = $\frac{720}{72}$ Tk.
Total share of rent for 325 cows is = $\frac{720$\times$}{72}$ = 3250Tk.
