Question

A man's age is p% of what it was 20 years ago but q% of what he will be
after 10 years. What is his present age? .​

Answer 1

Answer:

Let present age be x

x = p% of (x - 20).

x = q% of (x + 10).

p% of (x - 20) = q% of (x + 10)

px - 20p = qx + 10q

x (p - q) = 10q + 20 p = 10 (q + 2p)

(p - q)x = 10q + 20p = 10(q + 2p)

x = 10(q + 2p) / p – q

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

x = 10(q + 2p) / p – q