Question

Find the marks obtained by Neha in two subjects if their average is 75 and their product is 5600.

Answer 1

Let the marks be x and y
Given,
$\frac{x + y}{2} = 75 \\ x + y = 150 - - - (1) \\ x \times y = 5600 \\ substitute \: y = \frac{5600}{x} \: in \: (1) \\ x + \frac{5600}{x} = 150 \\ {x}^{2} - 150x + 5600 = 0 \\ (x - 80)(x - 70) = 0 \\ x = 80 \: \: or \: \: 70$
Therefore, marks are 70 and 80

Answer 2

Answer:

70

80

hehe bhosdi wale Teri maa ki choot