As all of you might know that I have started SBI Clerk exam Preparation Series. In this series, I am trying to provide free material to my readers. Today I will discuss three important questions from Profit and Loss chapter.
Cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:
Solution - This type of questions should be done by using options.
⇒Cost Price of 20 articles = Selling price of x article
(Let cost price of one article = Rs 20)
⇒CP of 20 articles ( 20 * 20 ) = SP of x articles
⇒ If CP of 1 article = Rs 20, Selling price of one article = 20 * 1.25 = 25
⇒ 25x = 400
⇒ x = 16
Ques 2 - If selling price is doubled, the profit triples. Find the profit percent.
Solution - Let SP = x, CP = y
⇒2x-y = 3(x-y)
⇒2x-y = 3x-3y
⇒ 2y = x
It proves that SP is double of CP, which means profit percentage is 100%.
Ques 3 - A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?
Solution - CP per toffee = 1/6 and SP per toffee = 1/6 * 1.2 = 1/5
So answer is 5
In case of any query, comment below.
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