ICSE Class 9 Answered
3 books and 2 pen?30
4 books and 1 pen? 90
Find the cost of each
Asked by devalakshmis2017 | 28 Jun, 2019, 19:23: PM
Expert Answer
3 books and 2 pen₹30
4 books and 1 pen₹ 90
HintAssume the cost of book as 'x' and that of pen as 'y'.
Form the respective equations from the given information.
3x + 2y = 30
4x + y = 90
Solve for 'x' and 'y'.
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