Question
If {1/(y + 1) + 1/(y + 5)} = {1/(y + 2) + 1/(y + 4)}.
Find the value of yÂSolution
We are solving:
Combine the fractions on both sides. Cancel common terms (2y+6) to get:
This simplifies to 5=8, which is a contradiction unless 2y+6=0. Solve 2y+6=0: Hence y = -3
3Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 18Â Â Â Â Â 149Â Â Â Â Â Â Â Â 602Â Â Â Â Â Â Â Â 15057
...1, 1, 3, 15, 105, 942
- Find the wrong number in the given number series.
8, 14, 24, 49, 59, 84 2, 4, 16, 48, 240, 1440, 10080
1001, 934, 863, 790, 711, 630, 539
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1728, 121, 1000, 729, 512, 49
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21, 31, 11, 41, 1, 61Find the wrong number in the given number series.
548, 532, 568, 510, 604, 460
9Â Â Â Â Â Â Â Â Â Â Â Â Â 17Â Â Â Â Â Â Â Â Â Â 53Â Â Â Â Â Â Â Â Â Â 103Â Â Â Â Â Â Â Â 310Â Â Â Â Â Â Â Â 619
...43, 42, 41, 39, 33, 10