Find the Cost Price of 10 Chairs and 10 Tables
3 tables or 8 chairs cost Rs.216. What will 10 chairs and 10 tables cost?
A) Rs.880
B) Rs.990
C) Rs.860
D) Rs.760
E) None of these
A) Rs.880
B) Rs.990
C) Rs.860
D) Rs.760
E) None of these
Asked by: Karthik on Oct 22, 2016.
Kokila said: (Sat, Oct 22, 2016 02:53:07 PM IST)
Answer: B) Rs. 990.
Solution:
3 tables = 8 chairs
1 table = 8/3 chairs
8 chair cost = Rs. 216
1 char cost = 216/8 = Rs. 27
1 table cost = 8/3(27) = Rs. 72
10 chairs + 10 tables cost = 10(27) + 10(72)
=> 270 + 720 = Rs. 990
So, cost of 10 chairs and 10 tables is Rs. 990.
Solution:
3 tables = 8 chairs
1 table = 8/3 chairs
8 chair cost = Rs. 216
1 char cost = 216/8 = Rs. 27
1 table cost = 8/3(27) = Rs. 72
10 chairs + 10 tables cost = 10(27) + 10(72)
=> 270 + 720 = Rs. 990
So, cost of 10 chairs and 10 tables is Rs. 990.
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