16
Q:

# 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.

 A) Rs.1200 B) Rs.1230 C) Rs.1260 D) Rs.1290

Explanation:

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

$\inline&space;\fn_jvn&space;{\color{Black}&space;\Rightarrow&space;(\frac{95}{1140}=\frac{105}{x})}$

$\inline&space;\fn_jvn&space;{\color{Black}&space;\Rightarrow&space;x=1260}$

Q:

A person sold two cows each for Rs.9900. If he gained 10% on one and lost 20% on the other, then which of the following is true ?

 A) He lost Rs. 200 B) He gained Rs. 200 C) Neither he gained nor lost D) None of the above

Explanation:

In first he got Rs. 990

But in second he lost Rs. 1980

So he lost Rs. 990.

1 12
Q:

The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit ?

 A) Rs. 660 B) Rs. 560 C) Rs. 1060 D) Rs. 960

Explanation:

Let C.P. = Rs. C.
Then, 832 - C = C - 448
2C = 1280 => C = 640
Required S.P. = 150% of Rs. 640 = 150/100 x 640 = Rs. 960.

2 36
Q:

The price of an article has been reduced by 35%. In order to restore the original price the new price must be increased by ?

 A) 51.8 % B) 49.25 % C) 47.2 % D) 53.84 %

Explanation:

100
65
-------
65 ------- 35
100 ------ ? => 53.84 %

2 45
Q:

A trader marked the price of the T.V. 30% above the cost price of the T.V. and gave the purchaser 10% discount on the marked price, thereby gaining Rs.340. Find the cost price of the T.V ?

 A) Rs. 2000 B) Rs. 1600 C) Rs. 2200 D) Rs. 2100

Explanation:

Let 'x' be the cost price.
Now Marked price = x + 30x/100 = 13x/10
10% discount = 10/100 x 13x/10 = 13x/100
Selling price = 13x/10 - 13x/100 = 117x/100
Given gain = 340
Here gain = 117x/100 - x = 17x/100 = 340 => x = Rs. 2000.

3 45
Q:

A man saves 20% of his monthly salary. If an account of dearness of things he is to increase his monthly expenses by 15%, he is only able to save Rs. 400 per month. What is his monthly salary ?

 A) Rs. 6000 B) Rs. 4500 C) Rs. 5000 D) Rs. 6500

Explanation:

Income = Rs. 100

Expenditure = Rs. 80

Savings = Rs. 20

Present Expenditure 80x(15/100) = Rs. 12 = 80 + 12 = Rs. 92

Present Savings = 100 – 92 = Rs. 8

100 ------ 8
? --------- 400 => 5000

His salary = Rs. 5000