Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5
Banner 6
Banner 7
Banner 8
Banner 9

Q.

The cost of four chairs and five tables is Rs 3200. Write a linear equation in two variables for the statement and find out two solutions.


Sub Grade: 9


see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya

a

(5,535) and (4,790)

b

(7,840) and (2,440)

c

(10,840) and (5,740)

d

(5,636) and (4,795) 

answer is D.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

Detailed Solution

Let x is the cost of chair
and y is the cost of the table.
fron condition
4x + 5y = 3200   …(i)
Replacing 5 for x randomly in eqn (i)
4(5) + 5y = 3200
5y = 3200 – 20
y = 3810/5
y = 636
The first
is (5,636)
Replacing 4 for y is the equation (i)
4x + 5 × 4 = 3200
4x = 3200 – 20
4x = 3180
x = 795
The second
is (4,795)
  
Watch 3-min video & get full concept clarity
score_test_img

courses

No courses found

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!

best study material, now at your finger tips!

  • promsvg

    live classes

  • promsvg

    progress tracking

  • promsvg

    24x7 mentored guidance

  • promsvg

    study plan analysis

download the app

gplay
mentor

Download the App

gplay
whats app icon
personalised 1:1 online tutoring