Question

Mr. A has ordered 'x pizzas' and 'y burgers' from a shop. Mr. B ordered twice the pizza, but one burger less than Mr. A's order.
Which algebric expression indicates the total orders bought by Mr. B?

• A. 2x + y - 1
  
• B. x + 2y - 1
  
• C. x + 2 + y - 1
  
• D. 2x + y + 1
  

Answer 1

The correct option is A 2x + y - 1


Given,
Number of pizza Mr. A has ordered = x
Number of burger Mr. A has ordered = y

$\Rightarrow$Number of pizza Mr. B has ordered is twice the pizza than Mr. A = 2x

$\Rightarrow$Number of burger Mr. B has ordered is one less than Mr. A has ordered = y - 1

$\Rightarrow$Total number of Mr.B's orders = number of pizzas Mr. B has ordered + number of burgers Mr. B has ordered
$\Rightarrow$ (2x) + (y-1)

Hence, total number of orders bought by Mr. B = 2x + y - 1