Question

Rohini had scored 10 more marks in her mathematics test out of 30 marks, 9 times these marks would have been the square of her actual marks. How many marks did she get in the test? ​

Answer 1

Answer:

let the marks scored by Rohini be x

according to the given condition

9(x + 10) = x2

x2 - 9x - 90 = 0

x?- 15x+6x - 90 = 0

x(x - 15) + 6(x - 15) = 0

x = 15 or x = -6

marks obtained cannot be neagative

50,X = 15

marks obtained by Rohini are 15

Plz mark it as brainlist answer

Answer 2

Answer:

x = 15 or x = -6

but x = -6 is not possible because it is in negative so we take x = 15 , it is the answer ...