সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Two pipe A & B can fill a tank in 15 minutes and 20 minutes respectively. If both pipes are opend together, then after how much time B should be closed so that the tank is full in 10 minutes?
Two pipe A & B can fill a tank in 15 minutes and 20 minutes respectively. If both pipes are opend together, then after how much time B should be closed so that the tank is full in 10 minutes?
- ক. 20/3
- খ. 8
- গ. 4
- ঘ. 6
সঠিক উত্তরঃ 20/3
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- What is the thikness of a pipe that has an outer diameter of 2.5 inches and inner diameter of 2.1 inches?
- A tank is 30% full with water. If 18 liters of water is added the tank become 3/4 full. What is the capacity of the tank?
- Three-fourth petrol of a reservoir is used to fill the petrol tanks of five trucks having the same storege capacity; What part of the total capacity of the petrol reservoir did each truck receive?
- The water in a fish tank measuring 5/4 feet by 8 inches is 7 inches high. The water is poured into another tank measurinig 14 inches by 20 inches. What will be the height of water, in inches in the secont tank?
- An empty swimming pool can be filled to capacity through an inlet pipe in 3 hours and it can be completely drained by a drainpipe in 6 hours. If both pipes are fully open at the same time, in how many hours will the empty pool be filled to capacity?
There are no comments yet.