Question

If the sum and product of two numbers are respectively 40 and 375, then their difference is

• A. 15
• B. 10
• C. 13
• D. 16

Answer 1

Answer:

B. 10

x+y=40 xy=375 (x-y)²=(x+y)²-4xy =1600-4x375 =1600-1500=100 x-y=10