Question

IF THE COST OF 4 PEN IS RS 20 THEN WHAT IS THE COST BY OF 7 PEN ?
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Answer 1

Answer:

35

Step-by-step explanation:

cost of 1 pen=5 cost of 7pen =35

Answer 2

Answer:

the cost of 7 pens is 35 rs because per pen cost is 5 rs.