At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?

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Job Solution First Security Islami Bank Ltd First Security Islami Bank Ltd - Probationary Officer - 2014 গণিত
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If the mean of numbers 28, x, 42, 78 and 104 is 62, what is the mean of 48,62,98,124 and x?

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Job Solution First Security Islami Bank Ltd First Security Islami Bank Ltd | Probationary Officer | 19-02-2021 গণিত
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The average age of a group o f10 students was 20. The average age increased by 2 years when two new students joined the group students who joined the group?

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If x men can do a work in y days, how many days will it take (x+4) men to do the same work?

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Job Solution First Security Islami Bank Ltd First Security Islami Bank Ltd - Probationary Officer - 2014 গণিত
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If the difference between the circumference and diameter of a circle is 60 cm , then the radious of the circle is-

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A triangular plot with sides of 25 feet, 40 feet and 55 feet is to be surrounded by a fence built on pillars set 5 apart . How many pillars will be required to surround the plot.

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