Math Help Line

Janata Bank Limited Post: Assistant Executive Officer

4-Feb-2020

Q:

P does a work in 12 days for 8 hours and Q does a Work in 8 days for 10 hours. If both work for 8 hours then how many days it needed to complete the work?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

5/5/11 day

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Q:

A farmer wishes to start a 100 sq.m rectangular vegetable garden. Since he has only 30 m barbed wire, he fences three sides of the garden letting his house compound wall act as the fourth side fencing. The dimension of the garden is?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

(10 , 10 )(5 , 20 )

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Q:

Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours, C is closed and A and B can fill the remaining part in 7 hours. How many hours will take C alone to fill the tank ?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

14 hour

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Q:

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

1 hour

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Q:

Two men X and Y started working for a certain company at similar jobs on January 1, 1990. X asked for an initial salary of Tk. 300 with an annual increment of Tk. 30. Y asked for an initial salary of Tk. 200 with a rise of Tk. 15 every six months. Assume that the arrangements remained unaltered till December 31, 1999. Salary is paid on the last day of the month. What is the total amount paid to them as salary during the period?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

93300 tk

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Q:

If x+1/x=2; find the value of x17+1/x19=?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

2

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Q:

A sum of taka 725 is lent in the beginning of a year at a certain rate of interest. After 8 months , a sum of Tk 362.50 more is lent but at the rate of twice the former. At the end of the year, Tk 33.50 is earned as interest from both the loans. what was the original rate of Interest ?


Janata Bank Limited Post: Assistant Executive OfficerDate: 10-01-2020

Answer

3.465% or 3.47% (approximately)

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