Thinking Mathematically

In a meeting, when the spreadsheet gets glitchy, the tetchy boss throws an issue to all or any. "Our profit might be 26% of 3400000. what proportion is it? Rax?"

Rax cannot call the manager at this point, because she is that the manager.

And, she left her phone on the desk. She doesn't have access to a calculator.

While she blankly stares into her impending future, Chandler intervenes to save lots of the sport.

"It's 884000, Monika. Could I BE any longer correct?"

Monika, boss lady, didn't look impressed. Not because Chandler was wrong - he was right and oh so quick! - but because she got irritated together with his cocky attitude.

The question here is, how could he find the solution so quickly?

Algebra was his saviour: (x+a)(x-a) = x²-a².

Observe, that x is that the average of (x+a) and (x-a).

This method works smoothly for numbers with even differences.

The average of 26 and 34 is 30. So, 26×34 is (30-4)(30+4) = 900-16 = 884. The 'tough' multiplication might be avoided.

A percent of 100000 is 100. Hence, 884000.

Probably Chandler studied Statistical Analysis and Data Reconfiguration.

Monika yelled!

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