Question

The cost of 50 new bricks is ₹1000 while the cost of 100 old bricks is ₹1600. Considering 100 bricks, how much more expensive are new bricks from old bricks?

• A. ₹1000
• B. ₹250
• C. ₹400
• D. ₹750

Answer 1

The correct option is C ₹400

Cost of 50 new bricks = ₹1000
Then cost of 1 new brick = 1000/50 = ₹20

So, the cost of 100 new bricks
= ₹100 × 20
= ₹2000

Also, cost of 100 old bricks = ₹1600

Difference in their cost
= ₹2000 - ₹1600
= ₹400