7
2
-2
-7
Correct answer is B
a∗b=a2+b+ab
5∗x=52+x+5x=37
25+6x=37⟹6x=12
x=2
Marks 5-7 8-10 11-13 14-16 17-19 20-22 No of students 4 7 26 41 14 8 T...
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