Question

The sum of two numbers is 40 and their product is 375. What will be the sum of their reciprocals?

• A. 1/40
• B. 8/75
• C. 75/4
• D. 75/8

Answer 1

Answer:

B. 8/75

P + Q = 40 P × Q = 375 The sum of their reciprocals ⇒ 1/P + 1/Q = (P + Q)/PQ ⇒ 40/375 ⇒ 8/75