Question
The present ages of Tarun, Varun, and Arun are in the
ratio 6:4:5. If Arun’s age after 6 years will be 36 years, find their current average age.Solution
Present age of Arun = 36 – 6 = 30 years Present age of Varun = 30 × (4/5) = 24 years Present age of Tarun = 30 × (6/5) = 36 years Present average age of Tarun, Varun and Arun = (30 + 24 + 36)/3 = 90/3 = 30 years
((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?
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If p = 33 - q - r and pq + r(q + p) = 260, then find the value of (p² + q² + r²).
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