QOTD | Quantitative Aptitude | Profit and Loss

Question of The Day09-01-2020

A dishonest shopkeeper goes to his dealer for buying refined oil, but on purchase of every 1000 ml oil, he took 1200 ml oil from a dealer, as he used tempered weight. When the shopkeeper starts selling the oil, he used the weight so that every customer gets 800ml on a purchase of 1000 ml. He marks the oil price 10% above but gave an additional discount of 10%. What is the loss that has occurred to the customer?

Answer

Correct Answer : b ) 25%

Explanation :

Quick Approach:

As the customer gets 800 ml of oil instead of 1000 ml

So, on purchase of 800 ml, he loses 200 ml

Thus,

QOTD 9 Jan Profit and Loss

Hence, (b) is the correct answer.

Basic Approach:

As the customer will face loss only because of the treachery of shopkeeper so he will face a loss of 200 ml which he didn’t get

Let us assume the price promised to the customer for 1000 ml oil is ₹ X

So, the promised price of 1 ml of oil =₹ \(X \over 1000\)

As the customer gets 800 ml instead of 1000 ml of oil

So, he gets 800 ml of oil in ₹ X

Thus, the effective price paid by the customer for 1 ml of oil is = ₹\(X \over 800\)

Therefore,

QOTD 9 Jan Profit and Loss Solution

⇒ 25%

Hence, (b) is the correct answer.

Such type of question is asked in various government exams like SSC CGL, SSC MTS, SSC CPO, SSC CHSL, RRB JE, RRB NTPC, RRB GROUP D, RRB OFFICER SCALE-I, IBPS PO, IBPS SO, RRB Office Assistant, IBPS Clerk, RBI Assistant, IBPS RRB OFFICER SCALE 2&3, etc.

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