BdMO National 2013: Primary 1
A group of $7$ women takes $7$ days to make $7$ Nokshikatha. How many days will a group of $5$ women take for making $5$ Nokshikatha?
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Re: BdMO National 2013: Primary 1
3.857142857
ba 27/7
ba 27/7
Re: BdMO National 2013: Primary 1
Please post your full solution here.
And just to let you know, your answer is not correct.
Think harder.
And just to let you know, your answer is not correct.
Think harder.
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
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Re: BdMO National 2013: Primary 1
Only 7 days
Re: BdMO National 2013: Primary 1
@Ahnaf Akif PathanAhanaf Akif Pathan wrote:Only 7 days
Please post your full solution. People actually post problems, because they do not know how to approach or solve the full problem(and sometimes to share good problems).
If they just needed an answer, they would just use a computer. So kindly practice posting full solutions.
Here's a full solution-
Please Install $L^AT_EX$ fonts in your PC for better looking equations,
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
Learn how to write equations, and don't forget to read Forum Guide and Rules.
"When you have eliminated the impossible, whatever remains, however improbable, must be the truth." - Sherlock Holmes
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Re: BdMO National 2013: Primary 1
If 7 people need 7 days to make 7 katha, then it will take 77=49 days for 1 person to make 7 katha (since the workload will 7 times more)BdMO wrote:A group of $7$ women takes $7$ days to make $7$ Nokshikatha. How many days will a group of $5$ women take for making $5$ Nokshikatha?
So it will take that person 749=7 days to sew each katha. (7 times less workload)
Therefore it takes 57=35 days for the person to sew 5 katha. (5 times more workload)
Now if we increase the number of sewers to 5 , the workload will be reduced 5 times.
So, the time needed for 5 people to sew 5 katha will be 535=7 days.
Re: BdMO National 2013: Primary 1
need 7 days
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Re: BdMO National 2013: Primary 1
7 women make 7 Nokshikatha in 7 days,
So 7 women make 1 Nokshikatha in 7/7 days
So 1 Women make 1 Nokshikatha in (7*7)/7 days or 7 days
Now 5 women make 1 Nokshikatha in 7*5 days
And 5 women make 5 Nokshikatha in (7*5)/5 days or 7 days.
So 7 women make 1 Nokshikatha in 7/7 days
So 1 Women make 1 Nokshikatha in (7*7)/7 days or 7 days
Now 5 women make 1 Nokshikatha in 7*5 days
And 5 women make 5 Nokshikatha in (7*5)/5 days or 7 days.
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Re: BdMO National 2013: Primary 1
THE ANSER IS 7