RRB NTPC Mains or Stage 2 Model Paper 2 with solutions

(a) Time taken in walking both the ways
= 12 hours 20 minutes ...(i)
Time taken in walking one way and riding back= 9 hours 50 minutes ...(ii)
By the equation, (ii) × 2 – (i)
We get,
Time taken by her in riding both ways,
⇒19 hours 40 minutes – 12 hours 20 minutes
⇒ 7 hours 20 minutes