Question Detail

If the cost price of 12 pens is equal to the selling price of 8 pens, the gain percent is ?

Answer: Option C

Explanation:

Friends, we know we will need gain amount to get gain percent, right. So lets get gain first.

Let the cost price of 1 pen is Re 1
Cost of 8 pens = Rs 8
Selling price of 8 pens = 12
Gain = 12 - 8 = 4

$\begin{aligned} Gain\% = \left( \frac{Gain}{Cost} * 100 \right)\% \\ = \left( \frac{4}{8} * 100 \right)\% = 50\% \end{aligned}$

1. A man buys an article for Rs. 27.50 and sells it for Rs 28.60. Find his gain percent

Answer: Option D

Explanation:

So we have C.P. = 27.50
S.P. = 28.60

Gain = 28.60 - 27.50 = Rs. 1.10

$\begin{aligned} Gain\% = \left( \frac{Gain}{Cost} * 100 \right)\% \\ = \left( \frac{1.10}{27.50} * 100 \right)\% = 4\% \end{aligned}$

2. A person incurs a loss of 5% be selling a watch for Rs. 1140. At what price should the watch be sold to earn 5% profit.

Rs.1200
Rs.1230
Rs.1260
Rs.1290

Answer: Option C

Explanation:

Let the new S.P. be x, then.
(100 - loss%):(1st S.P.) = (100 + gain%):(2nd S.P.)

$\begin{aligned} =>\left( \frac{95}{1140} = \frac{105}{x} \right) \\ => x = 1260 \end{aligned}$

3. A shopkeeper sold an article for Rs 2564.36. Approximately what was his profit percent if the cost price of the article was Rs 2400

Answer: Option D

Explanation:

Gain % = (164.36*100/2400) = 6.84 % = 7% approx

4. A TV is purchased at Rs. 5000 and sold at Rs. 4000, find the lost percent.

Answer: Option B

Explanation:

We know, C.P. = 5000
S.P. = 4000
Loss = 5000 - 4000 = 1000

$\begin{aligned} Loss\% = \left( \frac{Loss}{Cost} * 100 \right)\% \\ = \left( \frac{1000}{5000} * 100 \right)\% = 20\% \end{aligned}$

5. If the cost price is 25% of selling price. Then what is the profit percent.

150%
200%
300%
350%

Answer: Option C

Explanation:

Let the S.P = 100
then C.P. = 25

Profit = 75

Profit% = 75/25 * 100 = 3005

Prasiddhi 6 years ago

I like it Very so much
Apoorva 9 years ago

thnx a lot Sir, plz provide more questions..

mastguru 9 years ago replied

Sure Apurva !