Question
Presently, the average age of Arun, Alok, and Aditya is
35 years, while the average age of Arun and Alok is 39 years. Determine Aditya's age after ten years if Aditya's current age is 40% less than Arun's current age.Solution
ATQ, ATQ, Total current ages of Arun, Alok, and Aditya = 3 × 35 = 105 years. Total current ages of Arun and Alok = 2 × 39 = 78 years. Current age of Aditya = 105 - 78 = 27 years. Arun's age given Aditya's age is 40% less: Aeun's age = 27/0.6 = 45 yrs Therefore: Aditya's age after ten years = 27 + 10 = 37 years.
2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 19Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 70...
6000 3002 1503 ? 378.75 191.375 97.6875
...If  204    196       223   x  284
Then, what is the average of the numbers of the above series?
...8   24    12    ?   18     54
3 ? 7 16 71 346
...104   106   110   113   ?   126
12, 18, 28, 42, 52, ?
18Â Â Â Â Â Â Â Â Â Â Â Â 29 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 51 Â Â Â Â Â Â Â Â 84 Â Â Â Â Â Â Â Â 128 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 182
5, 8, 17, ?, 37, 48
(32.03 + 111.98) ÷ 18.211 = 89.9 – 20.23% of ?
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