Profit And Loss
Math MCQs

Question :    Mr. Jack gets a profit of 195% by selling some articles for $11239.50. What was his cost price?

Correct Answer  3810

Solution & 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) = $11239.5

And, the profit = 195%

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 + 195} × 11239.5

= ^{100 × 11239.5}/₂₉₅

= ^1123950/₂₉₅ = 3810

Thus, the Cost Price (CP) = $3810 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 = 195%

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

= 195% of m

= 195% × m

= ¹⁹⁵/₁₀₀ × m

⇒ Profit = ^{195 m}/₁₀₀

Calculation of Cost Price (CP)

The Sale Price (SP) = Cost Price (CP) + Profit

⇒ 11239.5 = m + ^{195 m}/₁₀₀

⇒ 11239.5 = ^{100 m + 195 m}/₁₀₀

⇒ 11239.5 = ^{295 m}/₁₀₀

After cross multiplication, we get

11239.5 × 100 = 295 m

⇒ 295 m = 11239.5 × 100

⇒ m = ^{11239.5 × 100}/₂₉₅

⇒ m = ^1123950/₂₉₅ = 3810

⇒ m = 3810

Thus, the Cost Price (CP) = $3810 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) = $11239.5

And, the profit = 195%

Then, the Cost Price (CP) = ?

Let Cost Price (CP) = 100

Thus profit = 195% of 100 = 195

Thus, Sale Price (SP) = Cost Price (CP) + Profit

⇒ Sale Price (SP) = 100 + 195

⇒ Sale Price (SP) = 295

∵ If the Sale Price (SP) is 295, then the Cost Price (CP) = 100

∴ If the Sale Price (SP) is 1, then the Cost Price (CP)

= ¹⁰⁰/₂₉₅

∴ If the Sale Price (SP) is 11239.5, then the Cost Price (CP)

= ¹⁰⁰/₂₉₅ × 11239.5

= ^{100 × 11239.5}/₂₉₅

= ^1123950/₂₉₅ = 3810

Thus, the Cost Price (CP) = $3810 Answer

Shortcut Method to find Cost Price (CP) when SP and profit percent are known

Given, the sale price (SP) = $11239.5

And, the profit = 195%

Then, the Cost Price (CP) = ?

SP = 295% of CP

⇒ SP = ²⁹⁵/₁₀₀ × CP

⇒ 11239.5 = ^{295 CP}/₁₀₀

After cross multiplication

⇒ 11239.5 × 100 = 295 CP

⇒ 295 CP = 11239.5 × 100

⇒ CP = ^{11239.5 × 100}/₂₉₅

⇒ CP = ^1123950/₂₉₅ = 3810

⇒ CP = $3810 Answer

Similar Questions

(1) Calculate the cost price, if a trader gets a loss of 3% by selling an article for $397.70

(2) Find the profit percent if Mrs. Julie buys 29 bananas for $1 and sells 28 bananas for $1.

(3) A trader earns a profit of 205% by selling some articles for $12230.50. What was the cost price?

(4) A shopkeeper loses 40% by selling an article for $1116.00. For how much should he sell it to get a profit of 39%?

(5) For how much Mr. Peter should sell his books to get a profit of 11%? If he loses 12% by selling them for $404.80.

(6) A hawker buys 10 articles for $1 and sells 9 articles for $1 then, find the profit percent.

(7) On a closing day, a shopkeeper earns a profit of 65%. If gets $1996.5 in total, then what was his cost price?

(8) Find the cost price if Mr. Rocky earns a profit of 105% by selling an article for $4120.50

(9) If a trader gets a loss of 24% by selling 500 shares for $3503.60 then find the cost price of those shares.

(10) Find the earnings percentage if a peddler buys 51 articles for $1 and sells 50 articles for $1.