CAT
Exam
total cost of 3 tables and 2 chairs is Rs 1300 and that of table is 2 tables and 3 chairs is Rs 1200.find the cost of one chair?
Read Solution (Total 7)
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- Ans - 200
solution - Let one table cost is = x
one chair cost is = y
then,
+3x+2y=+1300-------(1)
+2x+3y=+1200-------(2)
- - -
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x-y=100
so,x=100+y
value puts in the equ. first
3(100+y)+2y=1300
or,300+3y+2y=1300
or,5y=1300-300
y = 1000/5
so one chair cost = 200 - 11 years agoHelpfull: Yes(2) No(0)
- Let x = cost of 1 table
Let y = cost of 1 chair
3x+2y=1300
2x+3y=1200
so x=300 and y=200
so cost of 1 chair=200
- 11 years agoHelpfull: Yes(1) No(0)
- 3t+2c=1300
2t+3c=1200
-----------add
5t+5c=2500
1t+1c=500
3t+3c=1500
3t+2c=1300
--------------sub
0t+1c=200(ans) - 11 years agoHelpfull: Yes(1) No(0)
- 3x+2y=1300
2x+3y=1200
solve it - 11 years agoHelpfull: Yes(0) No(0)
- Let x=cost of one table
y=cost of one chair
From question we get
3x+2y=1300
2x+3y=1200
By solving these two equations we get, y=200
Hence,the cost of one chair is 200. - 11 years agoHelpfull: Yes(0) No(0)
- ans=200rupee
as 3t+2c=1300
2t+3c=1200 ,solve these eq and get chair prise=200 - 11 years agoHelpfull: Yes(0) No(0)
- answer: cost of chair=200, table=300
given 3t+2c=1300
2t+3c=1500
add these two equations we get t+c=500
solve - 11 years agoHelpfull: Yes(0) No(0)
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