Subject
Bank Exam
Topic
Rupali Bank 2013 (Officer)
The ratio of three numbers is 3:4:5 and the sum of their squares is The sum of the numbers is:
The ratio of three numbers is 3:4:5 and the sum of their squares is The sum of the numbers is:
ক)
30খ)
50গ)
60ঘ)
90Explanation
Let the numbers be 3x, 4x and 5x Then, 9x2 + 16x2 + 25x2 = 1250 <=> 50x2 = 1250 <=> x2 = 25 <=> x = 5. ∴ Sum of numbers = (3x + 4x + 5x) = 12x = (12 * 5) = 60.Related questions
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