Question

The cost of a chocolate is Rs. (x + y) and Amir bought (x + y) chocolates. Find the total
amount paid by him in terms of x and y. If x =10, y =5 find the amount paid by him.​

Answer 1

Answer:

225

Step-by-step explanation:

Rs = 10+5 = 15

total chocolate bauhgt = x+ y=15

total cost = 15 ×15 = 225

Answer 2

Solution:

Amount paid = Number of chocolates × Cost of a chocolate

= (x+y) (x+y)

$= {x}^{2} + xy + yx + {y}^{2}$

Substitute the given x value and y value,

$= {10}^{2} + 10 \times 5 + 10 \times 5 + {5}^{2}$

$= 100 + 50 + 50 + 25$

$= rs.225$