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Four numbers are in the ratio 1 : 2 : 3 : 5. Two times their sum is 44. Find the ratio in the numbers obtained by subtracting 3
from the cube of each number.
2 : 31 : 204 : 999
3 : 13 : 208 : 992
11 : 67 : 219 : 1003
5 : 61 : 213 : 997
To solve this, let's start logically breaking down the problem:
- The numbers are in the ratio 1:2:3:5. Let's denote the numbers as \(x, 2x, 3x, 5x\).
- The sum of these numbers is \(x + 2x + 3x + 5x = 11x\).
- Two times their sum is 44, so \(2 \times 11x = 44\).
- Solving \(22x = 44\), we get \(x = 2\).
Now, calculate each number:
- The numbers are \(2, 4, 6, 10\).
Subtract 3 from the cube of each number:
- \(2^3 - 3 = 8 - 3 = 5\)
- \(4^3 - 3 = 64 - 3 = 61\)
- \(6^3 - 3 = 216 - 3 = 213\)
- \(10^3 - 3 = 1000 - 3 = 997\)
The ratio of these results is 5:61:213:997.
Now, let's check the options:
- Option 1: 2 : 31 : 204 : 999
- Option 2: 3 : 13 : 208 : 992
- Option 3: 11 : 67 : 219 : 1003
- Option 4: 5 : 61 : 213 : 997
- ? Option 4: 5 : 61 : 213 : 997 is the correct ratio.
By: santosh ProfileResourcesReport error
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