Question

With a total budget of $\$$18, 3 chocolates and 7 apples were bought. If the cost of 1 apple is $\$$1.5, the cost of each chocolate is.

• A. $\$$1.5
• B. $\$$2
• C. $\$$2.5
• D. $\$$3

Answer 1

The correct option is C $\$$2.5

Given:
Number of chocolates bought = 3
Number of apples bought = 7
Cost of 1 apple = $\$$1.5
Total budget = $\$$18

Let, x and y represent the cost of chocolates and apples respectively.

Hence, the equation representing this situation is:
3x + 7y = 18

Plotting the equation on graph, we get:



Subsituting y = 1.5 on the graph of equation, we get:
x = 2.5
$\therefore$ (x,y) = (2.5,1.5)

Hence, the cost of 1 chocolate is $\$$2.5.