Civil Service Exam Reviewer · Word Problems · hard
A train 220 m long travels at 72 km/h. How long does it take to pass a lamp post?
- 3.06 seconds
- 25.5 seconds
- 39.6 seconds
- 11 seconds
Answer
D. 11 seconds
Solution
72 km/h = 20 m/s. Distance = 220 m. Time = 220 ÷ 20 = 11 s.
More Word Problems questions
- ₱290,000 was invested, part at 3% and the rest at 6% simple annual interest. The total interest after one year was ₱12,000. How much was…
- The sum of the ages of Ella and Pia is 74. 4 years ago, Ella was 5 times as old as Pia. How old is Pia now?
- How many liters of water must be added to 100 liters of a 70% alcohol solution to reduce it to 20% alcohol?
- Jun leaves a town driving at 80 km/h. 2 hour(s) later, Bea leaves the same town on the same road at 90 km/h. How long after Bea starts…
- Ella can finish a job in 16 days and Jun in 9 days. They work together for 4 day(s), then Jun leaves. How many days in all does it take to…
- A pipe can fill a tank in 9 hours, while a drain can empty it in 12 hours. If both are open, how long will it take to fill the empty tank?
- Three consecutive odd integers are such that the sum of the first and the third is 82. What is the largest of the three?
- A delivery van traveled 210 km in 5 hours. Part of the trip was at 50 km/h and the rest at 40 km/h. How many hours did it travel at 50 km/h?
- If students sit 4 to a bench, 12 students have no seat. If they sit 5 to a bench, 3 bench(es) are left empty. How many students are there?
- Marco can finish a job in 10 days, Sofia in 12 days, and a third worker in 15 days. How long will the job take if all three work together?