Question

17. The cost of 9 chairs and 3 tables is
306. If the cost of 1 chair is 25, the
cost of 1 table is
(a) * 25
(b)*27
(c)*30
(d) 24​

Answer 1

Step-by-step explanation:

if 1 chair is 25 then cost of 9 chair is 225.

total cost of 9 chair and 3 table is 306

it means 306 - 225 = 81

that means cost of 3 table is 81

if cost of 3 table is 81 then cost of 1 table = 27

so your answer is (b) 27

Answer 2

Given:

The cost of $9$ chairs and $3$ tables = Rs: $306$

The cost of $1$ chair = Rs: $25$

To find:

The cost of $1$ table

Step-by-step explanation:

The cost of $1$ chair = Rs: $25$

The cost of $9$ chairs = $25\;\times\;9$

∴ The cost of $9$ chairs = Rs: $225$

The cost of $3$ tables = $Rs:\;306\;-\;225$

∴ The cost of $3$ tables = Rs: $81$

The cost of $1$ table = $\frac{81}3$

∴ The cost of $1$ table = Rs: $27$

Answer:

Therefore, the cost of $1$ table is option (b) Rs: $27$