IBPS RRB Office Assistant 2018 Paper

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Question : 78 of 80
 
Marks: +1, -0
A invests ₹ 12000 for X months while B invests ₹ 16000 for 9 months in a scheme. The profit share of Bis Rs. 12000 out of total profit Rs. 21000. Then, find the value of X.
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