Question
If 1/(x+ 1/(y+ 1/z)) = 13/30, then find x+y+z=
?Solution
Dividing numerator and denominator of RHS by 13. ⇒ (13/13)/(30/13) = 1/(30/13) = 1/(2+ 4/13) Again dividing by 4. ⇒ 1/(2+ (4/4)/(13/4)) = 1/(2+ 1/(13/4)) ⇒ 1/(2+ 1/(3+ 1/4)) ∴ x = 2, y = 3, z = 4 ∴ x+y+z= 9
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100, 164, 740, 3044, 9444, 20320
Direction: Find the wrong number in given number series.
640, 663, 713, 794, 920, 1065
147 490 707 831 895 922 930
...216, 432, 144, 288, 96, 191, 64
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23, 27, 51, 75, 131, 211
360, 322, 286, 248, 220, 190
16 18 25 52 116 241 457
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7, 11, 20, 45, 94, 194 Find the wrong number in given number series.
2206, 2230, 2278, 2394, 2566, 2950