The cost of a pen is Rs. 42. What will be the total cost of 48 Pens?
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2,016 is the answer. hope it helps you.
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Let the cost of a pen = Rs 7k. and cost of a ball pen is Rs.5k , accordingly :-
7k+5k = 48
or, 12k = 48 => k =48/12=4.
Cost of a pen = 7k = Rs.7×4 = Rs.28. , cost of a ball pen = 5k =5×4 =Rs.20.
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