Please Solve the question no. 2 & 3...
Answers
Answer:
2) 8 cows
3) Cost price of the chair was Rs. 33.75.
Step-by-step explanation:
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2) Let s, g, c be the cost of 1 sheep, 1 goat, 1 cow respectively.
"the cost of 5 sheep is equal to the cost of 8 goats"
=> 5s = 8g
"the cost of 30 goats is equal to the cost of 3 cows"
=> 30g = 3c => 10g = c
So...
50s = 10 × (5s) = 10 × (8g) = 80g = 8 × (10g) = 8c
That is, the cost of 50 sheep is equal to the cost of 8 cows.
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3)
Let t be the cost of the table and c the cost of the chair.
Since the table was sold for a 12% profit, its selling price was 1.12t.
Since the chair was sold for a 4% loss, its selling price was 0.96c.
Together, the cost was t+c=90, so t = 90 - c.
Also, there was a 6% profit so the total selling price was 1.06×90 = 95.4.
Therefore
total selling price = selling price of table + selling price of chair
=> 95.4 = 1.12t + 0.96c
=> 95.4 = 1.12(90 - c) + 0.96c
=> 95.4 = 1.12×90 - 1.12c + 0.96c
=> 1.12c - 0.96c = 100.8 - 95.4
=> 0.16c = 5.4
=> c = 5.4 / 0.16 = 33.75
So the cost price of the chair was Rs. 33.75.