Question

the cost of 30 pens is rupees 45. find the cost of 45 pens​

Answer 1

Answer:

Rs. 67.5

Step-by-step explanation:

• cost of 30 pens = Rs. 45
• cost of 1 pen = 45/30 = Rs. 1.50
• cost of 45 pens = Rs. 1.50 × 45 = Rs. 67.5

Answer 2

Answer:

Cost of 30 pens = ₹45

Cost of 1 pen = 45/30 = 3/2

Cost of 45 pens = 3/2 × 45 = 135/2 = 67 1/2

Hope it help you.