1.

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 ?

Answer»

Rs. 800



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



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