A

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Q. If cost of 12 pens is ₹ 84, then what is the cost of 10 such pens ?

  • (A) ₹ 90
  • (B) ₹ 72
  • (C) ₹ 65
  • (D) ₹ 70
  • Correct Answer - Option(D)
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  • Filed under category Math
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Explanation by: Admin

∵ Cost of 12 pens = ₹ 84
Cost of 1 pen = ₹ 84/12
∴ Cost of 10 pens = (84/12) x 10
= 7 x 10 = ₹ 70

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