Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
Answer/Solution
3
Steps/Work
Sol.
Let the number be x.
Then, x+17 = 60/x
⇔ x2 + 17x - 60 = 0
⇔ (x+20)(x-3) = 0
⇔ x = 3.
Answer A
Let the number be x.
Then, x+17 = 60/x
⇔ x2 + 17x - 60 = 0
⇔ (x+20)(x-3) = 0
⇔ x = 3.
Answer A