Question

Megha paid rs 1900for 4 dolls and 2 teddy bears.A doll costs twice as much as a teddy bear.Find the cost of a doll

Answer 1

Answer:let x be cost of doll

Let y be cost of teddy bear

4x+2y=1900

x=2y

Substitute x value in first equation

4(2y)+2y=1900

8y+2y=1900

10y=1900

Y=1900\10

y=190

substitute y value

x=2y

x=2(190)

x=380

Hence cost of doll is 380 rupees

Cost of teddy bear is 190 rupees

Step-by-step explanation: