RRB NTPC · Question 87

A tube has two punctures. First puncture empties the tank in 29 mins and second puncture empties the tank in 6 minutes. If the leakage is at certain rate, then find the time taken by both punctures to empty the tank. A. \(\dfrac{34}{35}\) B. \(3 \dfrac{34}{35}\) C. \(4\dfrac{33}{35}\) D. \(4\dfrac{34}{35}\)

1. A

   D

2. B

   A

3. C

   C

4. D

   B