- Have any questions?
- [email protected]
- Home
- The price of 10 chairs is equal to that of 4 tables.
Question 1:
The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Rs. 4000. The total price of 12 chairs and 3 tables is: A. Rs. 3500
B. Rs. 3750
C. Rs. 3840
D. Rs. 3900
Feedback Let the cost of a chair and that of a table be Rs. x and Rs. y respectively.
Then, 10x = 4y
y = 5/2 x.
15x + 2y = 4000
15x + 2 x 5/2 x=4000
20x = 4000
x=200.
So, y = 5/2 x 200 = 500.
Hence, the cost of 12 chairs and 3 tables = 12x + 3y
= Rs. (2400 + 1500) = Rs. 3900.
Then, 10x = 4y
y = 5/2 x.
15x + 2y = 4000
15x + 2 x 5/2 x=4000
20x = 4000
x=200.
So, y = 5/2 x 200 = 500.
Hence, the cost of 12 chairs and 3 tables = 12x + 3y
= Rs. (2400 + 1500) = Rs. 3900.
These questions are from this test. Would you like to take a practice test?