Aptitude - Problems on Numbers - Discussion
Discussion Forum : Problems on Numbers - General Questions (Q.No. 12)
12.
The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:
Answer: Option
Explanation:
Let the numbers be x and y.
Then, xy = 120 and x2 + y2 = 289.
(x + y)2 = x2 + y2 + 2xy = 289 + (2 x 120) = 529
x + y = 529 = 23.
Discussion:
12 comments Page 2 of 2.
Jayesh said:
10 years ago
The two numbers are 15 and 8.
Where,
15 + 8 = 23.
15* 8 = 120.
225 + 64 = 289.
Where,
15 + 8 = 23.
15* 8 = 120.
225 + 64 = 289.
(3)
Tirth said:
7 years ago
120*2 = 240.
240+289 = 529.
Then;
√529 = 23.
240+289 = 529.
Then;
√529 = 23.
(6)
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