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`        Divide 124 into 4 parts which is in progression such that the product of the 1st and the 4th part is 128 less than the product of the 2md and the 3rd part`
2 years ago

Arun
24739 Points
```							Dear studentsLet the 4 parts bea- 3d, a -d, a+d, a+ 3dSumnof all of this is 124Hence4a = 124a = 31(a -3d) (a+3d) = (a-d)(a+d) -128a² - 9d² = a² - d² -1288d² = 128d² = 128/8 = 16d = +4 or -4Hence if d = +4Then numbers are19, 27, 35, 43 If we take d = -4, we get aame numbers but in reverse order. RegardsArun (askIITians forum expert)
```
2 years ago
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• 101 Video Lectures
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• Test paper with Video Solution
• Mind Map
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• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions