The sum of fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first fifteen terms of that arithmetic progression?
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Job Solution Bangladesh House Building Finance Corporation (BHBFC) Bangladesh House Building Finance Corporation - Senior Officer - 20.10.2017 গণিত
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Salaries of A, B and C are in the ratio 2:4:6. Salary of Band C together is Tk. 12,000 By what percent is salary of C more than that of A?

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