Question

the cost of two tables and three chairs is RS. 330. If the chair costs of RS. 40 less than the cost of a table, find the cost of a table.​

Answer 1

Answer:

$let \: cost \: of \: table = x \\ cost \: of \: chair \: = x - 40 \\ according \: to \: question \\ 2x + 3(x - 40) = 330 \\ 2x + 3x - 120 = 330 \\ 5x = 330 + 120 \\ 5x = 450 \\ x = \frac{450}{5} = 90 \\ cost \: of \: table = rs.90 \\ cost \: of \: chair \: = 90 - 40 = rs.50$

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