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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The funds collected by the schools can be obtained by matrix multiplication:
⎣⎢⎢⎡402535504050203040⎦⎥⎥⎤⎣⎢⎢⎡2510050⎦⎥⎥⎤=⎣⎢⎢⎡700061257875⎦⎥⎥⎤.
funds collected by school A =7000
funds collected by school B =6125
funds collected by school C =7875
Total funds collected =7000+6125+7875=21000
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