Discussion

Explanation:

D’s capital = $1-\frac{1}{3}-\frac{1}{4}-\frac{1}{5}$ = $\frac{60-20-15-12}{60}$ = $\frac{60-47}{60}$ = $\frac{13}{60}$

∴ Ratio of A, B, C and D is 1/3 : 1/4 : 1/5 : 13/60 = 20 ∶ 15 ∶ 12 ∶ 13

∴ D’s profit = 6000 × 13/60 = 1300

Hence, option (d).

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