If cost of 1 chair = $3 and 1 table =$5, then p = and q = .
A
10
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
12
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
15
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
18
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
16
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C 15 Given:
Total budget = $120
Cost of 1 chair = $3
Cost of 1 table = $5
Let the number of chairs and tables bought be x and y respectively.
So,
3x + 5y = 120
Plotting the equation and substituting values of x on graph, we get:
When x = 15 on the graph, we get:
y = 15
i.e.,
(x, y) = (15,15)
Similarly, when x = 20
y = 12
i.e.,
(x, y) = (20,12)