They both go to a shop to
enquire about the rates which are quoted as follows:
Pen – ` 5 each, story book – ` 50 each How much money does each need to spend Clearly, Meera needs ` (5 × 2 + 50 × 5)
that is ` 260, while Nadeem needs (8 × 5 + 50 × 10) `, that is ` 540 In terms of matrix
representation, we can write the above information as follows:
Requirements
Prices per piece (in Rupees) Money needed (in Rupees)
2
5
8
10






5
50





5
2
5 50
260
8 5
10
50
540
×
+
×




=




×
+
×




Suppose that they enquire about the rates from another shop, quoted as follows:
pen – ` 4 each,  story book – ` 40 each