a) 4 days
b) 8 days
c) 6 days
d) 9 days
Answer: d
Explanation: Janardan completes $$\frac{2}{3}$$ of work in 10 days
Janardan completes 1 of work in
$$\eqalign{
& = \frac{{10 \times 3}}{2} \cr
& = 15{\text{ days}} \cr} $$
He completes $$\frac{3}{5}$$ of work in
$$\eqalign{
& = 15 \times \frac{3}{5} \cr
& = 9{\text{ days}} \cr} $$
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