Question

The cost of $2$ meter cloth is $10$. Find the cost of $100m$ cloth.

• A. $400$
• B. $500$
• C. $1000$
• D. $1500$

Answer 1

Answer: (B)

$500$

Cost of cloth is directly proportional to its length.

$10=2\times k\Rightarrow k=5$ , where k is the cost of cloth per meter

$\therefore$ Cost of $100m$ cloth $=5\times 100=500$.