সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?
One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?
- ক. 4 hours
- খ. 4.5 hours
- গ. 3 hours
- ঘ. 3.5 hours
সঠিক উত্তরঃ 4 hours
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- An empty pool is being filled with water at a constant rate. It takes 6 hours to fill 2/3rd of the pool. How much time will it take to completely fill the pool?
- Water flows into an empty 64-gallon drum through pipe A and follows out through pipe B. If the rate of flow through A is 2 gallons/h, how many gallons per hour must flow out through pipe B so that the drum is full in exactly 96 hours?
- Two pipes A & B would be fill a tank in 20 & 30 minutes respectively. Both pipes being oppen, find when A must be turned off so that the tank may be just filled in 15 minutes.
- If a pipe fills a tank in h hours what part of the tank does it fill in 2 hours?
- Which of the following fraction is the equivalent of 0.5%?
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