Haldwani scored 10 more marks in her mathematics test out of 30 marks 9 times these marks should have been the square of the actua

1 thought on “Haldwani scored 10 more marks in her mathematics test out of 30 marks 9 times these marks should have been the square of the actua”

1. Answer:

   let the marks scored by ajita be x according to the given condition

   9(x + 10) = x2

   x2 – 9x – 90 = 0 =

   x2 – 15x +6x – 90 = 0

   x(x – 15) + 6(x – 15) = 0

   x= 15 or x = -6

   marks obtained cannot be neagative

   so,x = 15

   marks obtained by ajita are 15

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