25 technicians, 20 scientist, 18 lecturers and 12 Engineers spent 266000₹ towards an exhibition. 5 technicians & 4 scientists spend equal amount altogether. 12 scientists & 9 lecturers spend equal amount altogether. 6 lecturers & 8 engineers spend equal amount altogether. in this way if each group spend equal amount altogether, then what is the amount spent by one scientist?
2800₹
3500₹
3600₹
4200₹
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Think you can put these inventions in the correct order, oldest to most recent?
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