Question

the total cost fpr a new pair of head phones and anew pair of sunglasses is Rs.140.Theadphones cost Rs.100 more than the sunglasses .How much headphone costs?​

Answer 1

Answer:

120

Step-by-step explanation:

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Answer 2

Answer:

To find : Cost of Headphones

Let the cost of headphones be xrs.

And cost of sunglasses be y rs.

1st Equation

X + Y = 140

2nd Equation

X = y + 100

X - y = 100

Subtract eqn 2 from 1

Y = 20rs. ( sunglasses cost)

Put the value of Y in eq. 1

X + 20 = 140

X = 120

Cost of Headphonea is 120 rs.