Question
Rs. 30,000 invested at simple interest of 8% p.a. yields
the same interest after 3 years as Rs. 45,000 when invested at simple interest of 'y%' p.a. yields after 4 years. Find the value of 'y'.Solution
ATQ, Simple interest earned on investing Rs. 30,000: 
ATQ, 
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...- What will come in place of the question mark (?) in the following series?
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