Question

The cost of one food packet is ₹ 45 with a fixed delivery charge of ₹10 . The total cost for y number of food packets is given by :

a) 45 + 10y

b) 45 + 10 + y

c) 45y + 10

d) 45 - 10y

• A. 45 + 10y
• B. 45 + 10 + y
• C. 45y + 10
• D. 45 - 10y

Answer 1

The correct option is C

45y + 10

$\text{Cost of y food packets = cost of 1 food packet}\times \text{number of food packets}$

$\Rightarrow$ $\text{Cost of y food packets}=45\times y$

$\Rightarrow$ $\text{Cost of y food packets}=45y$

Total cost = cost for y food packets + fixed charge

$\Rightarrow$ Total cost = 45y + 10