Question

Ajay buys 8 cookies costing `p each. If he gives the shopkeeper `50, how much change he gets back?​

Answer 1

Answer:

• .let x chocolates be purchased
• 10 chocolates were bought at Rs 1.50
• ∴ cost price of 1 chocolate =Rs
• 10
• 1050
• ∴ cost price x chocolate =Rs 0.15x
• cost price of auother x chocolates =Rs
• 100
• 20
• x=Rs 0.2x
• ∴ cost price 2x chocolate = Rs(0.15x+0.2x)
• =Rs 0.35x
• selling price of 20 chocolates =Rs 4.
• ∴ selling price of 1 chocolate =Rs
• 20
• 4
• =Rs 0.20
• ∴ selling price 2x chocolates Rs 0.4x.
• ∴ profit wade on 2x chocolates =Rs (0.4x−0.35x)
• =Rs 0.05x
• Given profit =Rs 10.
• ∴0.05x=10⇒
• 100
• 5
• x=10⇒
• x=200
• ∴200 chocolates were purchased. answer

Answer 2

Answer:

Ajay buys 8 cookies costing `p each. If he gives the shopkeeper `50, how much change he gets back?