Gujarat BoardEnglish MediumSTD 7MATHSFractions and Decimals1 Mark
MCQ
By what number $9\frac{4}{5}$ be multiplied to get $42?$
✓
$\frac{30}{7}$
B
$\frac{7}{30}$
C
$4\frac{1}{7}$
D
$4\frac{3}{7}$
✓
Answer
Correct option: A.
$\frac{30}{7}$
Product of two numbers $= 42$
One of the numbers $=9\frac{4}{5}=\frac{49}{5}$
$\therefore$ Other number = Product of two numbers $\div$ One of the numbers
$=42\div\frac{49}{5}$
$=\frac{42}{1}\times\frac{5}{49}$
$=\frac{6\times5}{1\times7}$
$=\frac{30}{7}$
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