If a - b = 7 and $a^2 + b^2 = 169$ where a, b > 0, then the value of 3a + b is :
Answer & explanation
Correct answer: option 2
If a - b = 7 and $a^2 + b^2 = 169$ where a, b > 0,
then the value of 3a + b
Put the values of a = 12 and b = 5 ( These values will satisfy the given equation)
3a + b = 3(12) + 5 = 36 + 5
3a + b = 41