Question

question 1 -. 4chairs and 3tables costs2100/- where as 5 chairs and 2 tables cost 1750/-. find the cost of 1 chair and 1 table. question 2-. five years ago ,A was twice as old as B .what is the percent age of A and B

Answer 1

1. 4c+3t=2100
5c+2t=1750
8c+6t=4200
15c+6t=5250
7c=1050
c=150
600+3t=2100
t=500

Answer 2

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sijasubbiah
Secondary SchoolMath 13+7 pts


4 chairs and 3 tables cost rs.2100 and 5 chairs and 2 tables cost rs.1750 what is the cost of a chair and a table
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Ask for details FollowReport by Noni6809 03.05.2018
Answers

Brainly User
Hey friend..!! here your answer
________________________

let the chair equal to x
table equal to y

according to question

4 x + 3 Y = 2100 ------1
5 x + 2 Y = 1750 -------2

by solving elimination method equation 1 and 2

4 x + 3 Y = 2100 × 5
5 x + 2 Y = 1750 x 4

20 X + 15 Y = 10500
20 X + 8 y = 7000
______________
7y = 3500

we get ,
y = 500

put the value of Y in equation 1

4x + 3(500) = 2100
4x + 1500 = 2100
4x = 600
x = 150

so that the cost of chair is 150 rupees and cost of table is 500

Hope it helps you!