The cost of 2 tables is equal to the cost of 5 chairs. If the difference of the cost of one table and one chair is Rs. 1200, then the cost of one chair is?
Correct Answer: Rs. 800
Explanation:
Let the cost of the table be Rs. x and the cost of the chair = Rs. y From 1st condition,
2x = 5y
⇒ x= 5y/2 From 2nd condition
x - y = 1200
⇒ (5y / 2) - y = 1200
3y / 2 = 1200
y = Rs. 800
