Question:
Find the cost price if a broker earned 375% while dealing a house for $35197.50
Correct Answer
7410
Solution And Explanation
Solution
Finding the cost price if the sale price and profit percent are known
The cost price (CP) can be found using the formula, algebraic method, using shortcut method, and taking the cost price as 100, 200, 300, 400, 500, or whatever you want.
Finding the cost price using the formula when the sale price and profit percent are known
Given, the sale price (SP) = $35197.5
And, the profit = 375%
Then, the Cost Price (CP) = ?
Formula to find the cost price when the sale price and profit percent are known
Cost Price (CP) = 100/100 + gain% × SP
Thus, the Cost Price (CP)
= 100/100 + 375 × 35197.5
= 100 × 35197.5/475
= 3519750/475 = 7410
Thus, the Cost Price (CP) = $7410 Answer
Finding the cost price (CP) using the Algebraic Method when the Sale Pric (SP) and the profit percent are given
Let the Cost Price (CP) = m
Here given profit = 375%
Calculation of Profit
Profit is calculated on cost price (CP)
Formula to find the Profit = Profit% of CP
Thus, profit on the cost price of m
= 375% of m
= 375% × m
= 375/100 × m
⇒ Profit = 375 m/100
Calculation of Cost Price (CP)
The Sale Price (SP) = Cost Price (CP) + Profit
⇒ 35197.5 = m + 375 m/100
⇒ 35197.5 = 100 m + 375 m/100
⇒ 35197.5 = 475 m/100
After cross multiplication, we get
35197.5 × 100 = 475 m
⇒ 475 m = 35197.5 × 100
⇒ m = 35197.5 × 100/475
⇒ m = 3519750/475 = 7410
⇒ m = 7410
Thus, the Cost Price (CP) = $7410 Answer
Finding the cost price (CP) using Unitary Method by taking the cost price (CP) is equal to 100 when the SP and the profit percent are given
Given, the sale price (SP) = $35197.5
And, the profit = 375%
Then, the Cost Price (CP) = ?
Let Cost Price (CP) = 100
Thus profit = 375% of 100 = 375
Thus, Sale Price (SP) = Cost Price (CP) + Profit
⇒ Sale Price (SP) = 100 + 375
⇒ Sale Price (SP) = 475
∵ If the Sale Price (SP) is 475, then the Cost Price (CP) = 100
∴ If the Sale Price (SP) is 1, then the Cost Price (CP)
= 100/475
∴ If the Sale Price (SP) is 35197.5, then the Cost Price (CP)
= 100/475 × 35197.5
= 100 × 35197.5/475
= 3519750/475 = 7410
Thus, the Cost Price (CP) = $7410 Answer
Shortcut Method to find Cost Price (CP) when SP and profit percent are known
Given, the sale price (SP) = $35197.5
And, the profit = 375%
Then, the Cost Price (CP) = ?
SP = 475% of CP
⇒ SP = 475/100 × CP
⇒ 35197.5 = 475 CP/100
After cross multiplication
⇒ 35197.5 × 100 = 475 CP
⇒ 475 CP = 35197.5 × 100
⇒ CP = 35197.5 × 100/475
⇒ CP = 3519750/475 = 7410
⇒ CP = $7410 Answer
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