Question

Sonia bought 3 cupcakes and 2 doughnuts for Rs 157. Anisha bought 1 cupcake and 2

doughnuts for Rs 113 from the same shop. If all cupcakes cost the same and all

doughnuts cost the same , how much does each doughnut cost ?

Solve this problem without using algebra.​

Answer 1

Answer:

45.5

Step-by-step explanation:

let x be the cost of a cupcake and y the cost of a doughnut the using the parameters we get

3x+2y=157

x+2y=113

multiplying 3 in the 2nd equation

3x + 6y = 339

substracting from equation first we get

-4y =. -182

so y= 45.5 rs