Meena is x years old. Her younger brother is 4 years younger than her. The product of their present ages is 60. Which quadratic equation in standard form represents this, and what is Meena's age?

Question

Accepted Answer

10. Brother's age = x - 4, so x(x - 4) = 60, giving x^2 - 4x - 60 = 0, i.e. (x - 10)(x + 6) = 0. Taking the positive root, Meena is 10 years old.

Meena is $x$ years old. Her younger brother is 4 years younger than her.
The product of their present ages is 60.
Which quadratic equation in standard form represents this, and what is Meena's age?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Standard Form and Roots practice

Meena is x years old. Her younger brother is 4 years younger than her.The product of their present ages is 60.Which quadratic equation in standard form represents this, and what is Meena's age?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Standard Form and Roots practice

Meena is $x$ years old. Her younger brother is 4 years younger than her.
The product of their present ages is 60.
Which quadratic equation in standard form represents this, and what is Meena's age?