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Ratio and Proportion — MATHS STD 7 — Question

ICSE BoardEnglish MediumSTD 7MATHSRatio and Proportion1 Mark
MCQ
Sonali bought one dozen notebooks for ₹ 66. What did she pay for one notebook?
  • A
    ₹ 6.50
  • B
    ₹ 6.60
  • C
    ₹ 5.60
  • D
    ₹ 5.50
✓

Answer

Cost of 12 books = ₹ 66
Let cost of one book = x
12 : 1 = 66 : x
12 × x = 1 × 66
x = 5.5
Cost of 1 book = ₹ 5.50 (d)

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