estimate the cost of 1 pen if 4 pens cost rupees 8.99
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Let the cost of one pen be x
Then cost of 4 pens is 4x = 8.99
So cost of one pen is
4x = 8.99
X = 8.99/4 = 2.2475
Then cost of 4 pens is 4x = 8.99
So cost of one pen is
4x = 8.99
X = 8.99/4 = 2.2475
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