# Chain Rule - Aptitude Questions and Answers Part 3

**11. 3 inlets, opened for 8 hours a day, can fill a reservoir completely in 2 days. For how many hours a day must 4 inlets be opened to fill the reservoir completely in 1day?**
a. 9

b. 10

c. 11

d. 12

**12. 6 blocks weigh 264.37 kg. What will be the weight of 5 blocks?**
a. Rs. 100

b. Rs. 140

c. Rs. 200

d. Rs. 220

**13. On a ship supplies for 120 adults and 200 boys are available but only 150 boys board the ship. How many adults can be catered to with the remaining supplies?**
a. 178

b. 195

c. 204

d. 488

**14. A camp had meal arrangements for 150 people to last for 45 days. However, 25 people decided to leave the camp after 10 days. For how many days will the remaining food last?**
c. 42

d. 54

**15. 10 painters work for 6 hours a day and finish painting a building in 18 days. If 15 men are put to finish the same work in 12 days. For how many hours should they work?**
a. 6

b. 10

c. 12

d. 15

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