ICSE /Class 7
Maths MCQ Based On Ratio and proportion revision
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ICSE Class 7 Maths Ratio and proportion revision
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Let x and y have 2p and 3p in rupees.
Express the fraction as a ratio of the decreased value over the old value.
Convert ratio in fraction on both side and cross multiply.
Let third proportion be x then 8:12 = 12:x.
\\(\\frac{A}{C}= \\frac{A}{B}\\times \\frac{B}{C}\\)
'to' means divide.
\\(\\frac{A}{C}= \\frac{A}{B}\\times \\frac{B}{C}\\)
R= 100 X SI / PX T
To get the ratio, divide the total number of boys by the number of girls.
set up an equation: 2x + 3x = 30
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