Question

If A varies directly as B and inversely as C and A = 10, B = 5 and C = 6, what is the value of A when B = 5 and C = 4?

A 24 Correct Answer Incorrect Answer
B 18 Correct Answer Incorrect Answer
C 30 Correct Answer Incorrect Answer
D 15 Correct Answer Incorrect Answer

Solution

Let the constant be x, According to the question, => A = x × B/C => 10 = x × 5/6 => x = 12 Now putting the value of A, => A = 12 × (5/4) => A = 15

Practice Next

Relevant for Exams:

×
×