Solve the equation : $\frac{4}{2 x + 1} + \frac{9}{3 x + 2} = \frac{25}{5 x + 4}$

Created: 3 months ago | Updated: 3 months ago

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$\frac{4}{2 x + 1} + \frac{9}{3 x + 2} = \frac{25}{5 x + 4} \Rightarrow \frac{4}{2 x + 1} + = \frac{15}{5 x + 4} + \frac{10}{5 x + 4} \Rightarrow \frac{4}{2 x + 1} - \frac{10}{5 x + 4} = \frac{15}{5 x + 4} - \frac{9}{3 x + 2} \Rightarrow \frac{20 x + 16 - 20 x - 10}{(2 x + 1) (5 x + 4)} = \frac{45 x + 30 - 45 x - 36}{(5 x + 4) (3 x + 2)} \Rightarrow \frac{6}{(2 x + 1) (5 x + 4)} = \frac{- 6}{(5 x + 4) (3 x + 2)} \Rightarrow \frac{1}{2 x + 1} = \frac{- 1}{3 x + 2} \Rightarrow 3 x + 2 = - 2 x - 1 \Rightarrow 3 x + 2 x = - 1 - 2 \Rightarrow 5 x = - 3 ∴ x = - \frac{3}{5} a n s .$

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Average wight of ALam, Babul and Kamal is 84/kg. When Dulal as a new member, joins the group , average weight of the group becomes 80 kg. If another man Einul whose weight is 3 kg more than that Dual, replaces Alam, then the average weight of the group becomes 79 kg What is the weight of Alam.

Created: 3 months ago | Updated: 3 months ago

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The perimeter of a square field is equal to the perimeter of a rectangular field. Length of the rectangular is 3 times of its width and the area is 768 square meter. How many square sized tiles of 80 centimeter width will be required to cover the square field?

Created: 3 months ago | Updated: 3 months ago

Job Solution Al-Arafah Islami Bank Limited Al- Arafha Islami Bank Ltd Recruitment Test for Management Trainee Officer Examination Held On : 2017 || 2017 গণিত

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A, B and C started a business jointly with a total amount of Tk. 28,000. A paid Tk. 4,500 more then B and B paid Tk. 7,000 less than C. If the company made a profit of Tk. 5,600. How much profit should C receive?

Created: 3 months ago | Updated: 3 months ago

Job Solution Al-Arafah Islami Bank Limited Al- Arafha Islami Bank Ltd Recruitment Test for Management Trainee Officer Examination Held On : 2017 || 2017 গণিত

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Solve the equation : 42x+1+93x+2=255x+4

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Average wight of ALam, Babul and Kamal is 84/kg. When Dulal as a new member, joins the group , average weight of the group becomes 80 kg. If another man Einul whose weight is 3 kg more than that Dual, replaces Alam, then the average weight of the group becomes 79 kg What is the weight of Alam.

The perimeter of a square field is equal to the perimeter of a rectangular field. Length of the rectangular is 3 times of its width and the area is 768 square meter. How many square sized tiles of 80 centimeter width will be required to cover the square field?

A, B and C started a business jointly with a total amount of Tk. 28,000. A paid Tk. 4,500 more then B and B paid Tk. 7,000 less than C. If the company made a profit of Tk. 5,600. How much profit should C receive?

Solve the equation : $\frac{4}{2 x + 1} + \frac{9}{3 x + 2} = \frac{25}{5 x + 4}$