Question

If 7 identical articles cost $₹5\frac{2}{21},$ then find the cost of 1 article.

• A. $₹\frac{147}{107}$
• B. $₹\frac{107}{147}$
• C. $₹\frac{7}{20}$
• D. $₹1\frac{2}{21}$

Answer 1

The correct option is B

$₹\frac{107}{147}$

Cost of 7 articles = ₹ $5\frac{2}{21}$

= ₹ $\frac{(21\times 5)+2}{21}$

= ₹ $\frac{107}{21}$

$\therefore$ Cost of 1 article = $\frac{107}{21}÷7$

= $\frac{107}{21}\times \frac{1}{7}$ = $₹\frac{107}{147}$