Answer:
17 minute 30 seconds.
Step-by-step explanation:
To solve this question we will apply unitary method.
∵ in 4 days train station clock gains = 7 minutes
∴ in 1 day the clock will gain = \(\frac{7}{4}\) minute
∴ in 10 days train clock will gain = \(\frac{7}{4}\times 10\)
= \(\frac{7\times 10}{4}\)
= \(\frac{70}{4}\)
= \(\frac{35}{2}\)
= \(17\frac{1}{2}\) minutes
or 17 minutes 30 seconds.
