নল ও চৌবাচ্চা (Pipes and Cistern)

Question 1: Three-fourth petrol of a reservoir is used to fill the petrol tanks of five trucks having the same storage capacity. What part of the total capacity of the petrol reservoir did each truck receive?

3/20

4/15

44972

1/5

Source: Eastern Bank Ltd - Officer - 2005

Answer: 3/20

Explanation:

Question 2: A water tank has two taps (Tap1 -Tap2) . Tap -1 can fill a tank in 8 hours and Tap- 2 can empty the tank in 16 hours. How long will they take to fill the tank if both taps are opened simultaneously but tap-2 is closed after 8 hours?

Source: Basic bank recruitment 2018; auditor -- 26.01.2018

Answer: 12

Explanation:

Question 3: ২.৫ মিটার বর্গাকার একটি খোলা চৌবাচ্চায় ২৮,৯০০ লিটার পানি ধরে । এর ভিতরে এলুমিনিয়ামের পাত লাগাতে প্রতি বর্গমিটারে ৫ টাকা হিসাবে মোট কত খরচ পড়বে ?

২২৯.৬০ টাকা

১২৯.২৯ টাকা

২২৭.৮০ টাকা

৬০০ টাকা

Source: ডাক ও টেলিযোগাযোগ মন্ত্রণালয়ের ডাক অধিদপ্তরের উপজেলা পোস্ট মাস্টার-০১.০১.২০১০

Answer: ২২৭.৮০ টাকা

Explanation:

Question 4: A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes . Both the taps are kept open for 10 minutes and then the first tap is shut off. After this , the tank will be completely filled in what time ?

10 min

15 min

20 min

25 min

Source: Sonali bank Ltd : officer ( cash) -27.04.2018

Answer: 10 min

Explanation:

Question 5: 30 men took a dip in a water tank 20m long and 15m broad on a religious day.If the aveage water displacement of water by a man is 2m3, then the rise in the water level in the tank will be --

20 cm

50 cm

100 cm

200 cm

Source: Trainee Asst. Officer 09.02.2018

Answer: 20 cm

Explanation:

Question 6: Three pipes P, Q and R can fill a tank in 6 hours. After running all three together for 2 hours, R is closed and P and Q can fill the remaining part in 7 hours. The number of hours taken by R alone to fill the tank is ---

Source: Standard Bank Ltd - Management Trainee Officer - 22.01.2016

Answer: 14

Explanation:

Question 7: একটি বাক্সে ১০ টি নীল ও ১৫ টি লাল মার্বেল আছে। যেমন খুশী টানলে প্রতিবার ২ টি একই রংয়ের মার্বেল হওয়ার সম্ভাব্যতা__

Source: গণপূর্ত অধিদপ্তর - উপ-সহকারী প্রকৌশলী ও ড্রাফটম্যান- সিভিল - ২৫.০১.২০১৮

Answer: 12

Explanation:

Question 8: A tank is 25 m long , 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq.m is :

Tk. 456

TK. 458

TK. 558

Tk. 568

Source: Pubali Bank Ltd - Junior Officer-Junior Officer(Cash) - 18.07.2014

Answer: TK. 558

Explanation:

Question 9: A tank is 30% full with water. If 18 liters of water is added, the tank becomes 3/4 full. What is the capacity of the tank?

Source: Southeast Bank Ltd - Officer - 17.04.2009

Answer: 40

Explanation:

Question 10: A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes . Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in what time?

10 min

15 min

20 min

25 min

Source: Sonali Bank Ltd Officer (Cash) 27.04.2018

Answer: 20 min

Explanation:

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You should read | Questions

If a pipe fills a tank in h hours what part of the tank does it fill in 2 hours?

A tank is filled in 5 hours by three pipes A,B and C The pipe C is twice as fast as B and B is twice as fast as A How much time will pipe A alone take to fill the tank?

সুমন ২০ টাকা ও ৩০ টাকা দামের সমসংখ্যক কলম কিনলো ্ যদি সে মোট ১০০০ টাকা কলম কিনে থাকে তবে মোট কয়টি কলম কিনলো?

Three taps A, B and C can fill a tank in 12,25 and 20 hours respectively. If a is open all the time and B and C are open for one hour each alternately, the tank will be full in :

একটি চৌবাচ্চার দৈর্ঘ্য ৫ মিটার, প্রস্থ ৪ মিটার ও উচ্চতা ৩ মিটার। চৌবাচ্চাটিতে কত লিটার পানি ধরবে?

One filling pipe P is three times faster than another filling pipe Q , If P can fill the tank in 24 hours, then what is the time taken to completely fill the tank if both pipes are opened together?

A gas tank is 1/5th full and requires 32 gallons more to make it 3/7 full. What is the capacity of the tank?

A gas tank that is 1/3 full requires 6 gallons to make it 5/6 full. What is its full capacity?

দুইটি নল দিয়ে একটি চৌবচ্চা ৮ মিনিটে পূর্ণ হয়। নল দুইটি খুলে দেয়ার ৬ মিনিট লাগলে দ্বিতীয় নলটি দিয়ে চৌবাচ্চাটি একক ভাবে পূর্ণ করতে কত মিনিট লাগবে?

একটি চৌবাচ্চা তিনটি নল দিয়ে যথাক্রমে ১০, ১২ ও ১৫ ঘণ্টায় পূর্ণ হতে পারে। তিনটি নল এক সঙ্গে খুলে দিলে চৌবাচ্চার অর্ধেক পূর্ণ হতে কত সময় লাগবে?

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প্রাচীন কাল থেকে সমসাময়িক

বাংলা ভাষা ও বাংলা ব্যকরণ

কারক ও বিভক্তি

যুদ্ধ, চুক্তি ও সম্মেলন

দশমিক-ভগ্নাংশ (Decimal Fraction)

Subject-Verb Agreement

বাংলা ভাষার উদ্ভব ও বিকাশ

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Question 1: Three-fourth petrol of a reservoir is used to fill the petrol tanks of five trucks having the same storage capacity. What part of the total capacity of the petrol reservoir did each truck receive?

Question 2: A water tank has two taps (Tap1 -Tap2) . Tap -1 can fill a tank in 8 hours and Tap- 2 can empty the tank in 16 hours. How long will they take to fill the tank if both taps are opened simultaneously but tap-2 is closed after 8 hours?

Question 4: A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes . Both the taps are kept open for 10 minutes and then the first tap is shut off. After this , the tank will be completely filled in what time ?

Question 5: 30 men took a dip in a water tank 20m long and 15m broad on a religious day.If the aveage water displacement of water by a man is 2m3, then the rise in the water level in the tank will be --

Question 6: Three pipes P, Q and R can fill a tank in 6 hours. After running all three together for 2 hours, R is closed and P and Q can fill the remaining part in 7 hours. The number of hours taken by R alone to fill the tank is ---

Question 8: A tank is 25 m long , 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq.m is :

Question 9: A tank is 30% full with water. If 18 liters of water is added, the tank becomes 3/4 full. What is the capacity of the tank?

Question 10: A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes . Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in what time?

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