3 years ago

The cost of 1 dozen pens is ₹ 24. Find the cost of 30 pens. hurry

1 answer:

8 0

The cost would be 60

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Answer:

Step-by-step explanation:

Direct proportion

60: 1 5 /12 = 120 : x

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Product of extremes = product of mean

60*x = (17/2)*120

$60*x=\frac{17}{12}*120\\\\60*x=17*10\\\\x=\frac{17*10}{60}\\\\x=\frac{17}{6}\\\\x=2\frac{5}{6}$

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