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## Combined 6 BANK & 2FI Senior Officer Written Math Solution Exam Date: 02-08-2019

3-Jul-2019
Q:

A, B and C can do a piece of work in 12,18.and 24 days, respectively. They all begin together. A work continuously till it is finished, B leaves the work 2 days before is completion and C leaves the work 4 days before its completion, In what approximate time is the work finished?
[6 Bank and 2 FI, Senior officer- 08/2019]

• #### discuss

92/13 days or 7.07days

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#### Bappi Debbath

৭(১/১৩) লিখেছি।ঠিক আছে কি?

#### Riman

Q:

Two trains running at the rate of 75km and 60km an hour respectively on parallel rails in opposite directions are observed to pass each other in 8 seconds and when they are running in the same direction at the same rates as before, a person sitting in the faster train observers that he passes the other in 31.5 seconds. Find the length of the train?
[6 Bank and 2 FI, Senior officer- 08/2019]

• #### discuss

131.25m and 168.75m

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Q:

A sum of Tk.3240 was fixed to complete a work, 54 workers completed the work in 8 days and the sum was divided equally among the workers. If the work was to be completed in 3 days then how much less money each worker would receive compared to when the work was completed in 8 days?
[6 Bank and 2 FI, Senior officer- 08/2019]

37.5TK

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#### Bappi Debnath

শ্রমিকের সংখ্যা বের না করে গনিতটা করলে ভুল হবে কি?

#### Rakib hossain

Vai amio শ্রমিক এর songkha ber na kore korsi

Q:

A pipe can fill a tank in 0.9 hours and pipe can empty in 0.7 hours, if tank is completely filled and both pipes are opened simultaneously then 450 litres of water is removed from the tank in 2.5 hours. What is the capacity of the tank?
[6 Bank and 2 FI, Senior officer- 08/2019]

567 liter

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details post koren vao

#### Rashidul

Q:

A rectangular plot has a concrete path running in the middle of the plot parallel to the breadth of the plot. The rest of the plot is used as a lawn, which has an area of 240m2. If the width of the path is 3m and the length of the plot is greater than is breadth by 2m, what is the area of the rectangular plot?

[6 Bank and 2 FI, Senior officer- 08/2019]