Correct Answer - Option 3 : 10/9 days
Calculation:
According to the question:
Remaining work = 1 – 3/4 = 1/ 4
Now,
3/4 work is completed in 10/3 days
1 work is completed in 10/3 × 4/3 days
1/4 work is completed in (10/3 × 4/3 × 1/4) days = 10/9 days
∴ The remaining work can be completed in 10/9 days.