Question

If the cost of 20 articles is ₹ 850, then cost of 35 articles is ₹ _____.

• A. 15 days
• B. 25 days
• C. 3 days
• D. 12 days

Answer 1

The correct option is A

15 days

Let the cost of 20 articles be $x$.
As the number of articles increases, the cost also increases. Hence, this is in direct proportion.

$\therefore$ $20x$ = $850$ $\times$ $35$
$⟹x$ = $\frac{850\times 35}{20}$

= ₹ 1487.50