SSC CGL 2020 PYQ — Question 74

SSC CGL - 4th March 2020 Shift 1 • Quantitative Aptitude • Q74

A person buys 5 tables and 9 chairs for Rs.15,400. He sells the tables at 10% profit and chairs at 20% profit. If his total profit on selling all the tables and chairs is Rs.2,080, what is the cost price of 3 chairs?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e Rs.1,800.

Understanding/Application

Let the cost price of one table and one chair be Rs. x and Rs. y respectively.

5x + 9y = 15400     ...1

According to the question

5x × (10/100) + 9y × (20/100) = 2080

5x/10 + 18y/10 = 2080

5x + 18y = 20800     ...2

Subtract equation (1) from equation (2).

9y = 5400

3y = 1800

Cost of 3 chairs are Rs. 1,800.