# 3 tables and 5 chairs together cost Rs. 3555,while 7 tables and 4 chairs together cost Rs.5788. Find the cost of a table and that of a chair.

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by dweejareddy

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by dweejareddy

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given that 3x+5y=3555

7x+4y=5788

then mul 1st eqn by 4 and 2nd eqn by 5 then

12x+20y=14220 --------(1)

35x+20y=28490 --------(2)

now, (2)-(1) then

x=640 and y=327

i.e tables=640 & chairs=327