Try it on paper first. A hint, the key idea and the worked solution are here when you need them.
Meera's age two years ago, multiplied by her age five years from now, gives . How old is Meera now?
Name the unknown with its unit, write the equation, put it in standard form, factorise, and keep only the roots that make sense. Time distance speed. Lengths, speeds and ages cannot be negative.
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Equation. .
Step 2. Standard form. , that is .
Step 3. Factorise. and , so .
Step 4. Meaning. An age cannot be negative, so . Check: .
Answer: Meera is years old.
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