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Check for Typo errors while solving maths problem :( example . Maharastra Board X Algebra )

Venkatesan Iyer
17/04/2018 1 0

Basically while solving mathematics problems, some typo errors can exhaust your patience.

One should look for such possibility to save efforts and time.

Example: Mathematics Part I (Algebra) by Maharashtra State Board

Practice set 1.5 Problem 7 Question 3.

The question deals with a problem in dealing notes of different denominations.

The given problem statement:

Suppose that Anushka had x notes of Rs 10 and Y notes of Rs 50 each...

the equations

10 x + 50 y = 2500

The number of notes interchanged.

50x + 10 y = 2000

 

If you try with details you will get fractional answers;

But have a look at the answer.

It mentions Rs 100.

There is a typo error.

The correct equations are

100x + 50 y = 2500

50 x + 100 y = 2000

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