RRB NTPC - Profit and Loss

41.

Amit purchased a book with a 10% discount on the labeled price. How much did he pay if the labelled price was 600? 

   A.) 480
   B.) 360
   C.) 540
   D.) 340

Answer: Option 'C'

Selling Price = 600 – 10% of 600 = 600 – 60 = 540.

42.

A discount of 14% on the marked price of an article is allowed and then the article is sold for Rs.387. The marked price of the article is 

   A.) Rs.450
   B.) Rs.427
   C.) Rs.500
   D.) Rs.440

Answer: Option 'A'

The selling price is 86% of the marked price and is = Rs.387.
So, The marked price = 387 × 100/86 = Rs.450.

43.

A shopkeeper increases the original selling price of an item to its twice. The initial gain per cent is given as 8%. Find out the new gain per cent

   A.) 64%
   B.) 116%
   C.) 164%
   D.) 180%

Answer: Option 'B'

Let the Cost price = Rs.100
The initial gain per cent = 8%
So, original SP = 108
Twice the SP = 216
Then, the gain = 216 – 100 = 116 i.e. gain per cent = 116%.

44.

A book-seller bought 200 textbooks for 12000. He wanted to sell them at a profit so that he got 20 books free. At what profit per cent should he sell them? 

   A.) 10
   B.) 11 1/9 %
   C.) 11
   D.) 11.1

Answer: Option 'B'

Here, the profit = CP of 20 books out of 180 books and
now the CP of 180 books = 12000.
:. The profit percent = 20 × 100/180 = 11 1/9 %

45.

The price of two tables and three chairs is Rs.5600. What will be the price of six tables and nine chairs?

   A.) 16800
   B.) 11200
   C.) 22400
   D.) None of these

Answer: Option 'A'

The cost of two tables + three chairs = 5600.
Multiply each term by 3, we get,
Cost of 6 table + 9 chairs = 16800.

46.

Sushma bought a microwave oven at a discount of 40% on the listed price. What is her percentage profit if she sells the oven at 5% more than the listed price? 

   A.) 25
   B.) 75
   C.) 45
   D.) None of these

Answer: Option 'B'

Let the Listed price = Rs.100.
Then, her CP = Rs.60; So, her selling price would be = Rs. 105
Then, her profit = Rs.105 – 60 = Rs.45. and
her profit percent = 45 × 100/60 = 75%.

47.

The cost of manufacture of an article was 900. The trader wants to gain 25% after giving a discount of 10%. The market price should be 

   A.) 1500
   B.) 1250
   C.) 1200
   D.) 1000

Answer: Option 'B'

Let ‘x’ be the marked price of the article
Then, x- 10% of x = 900 + 25% of 900
x- 10x/100 = 900 + 225; » 90x/100 = 1125 ; » x = 112500/90 = 1250

48.

A certain number of men can do a work in 40days. If there were 8 men more, it could be finished in 10 days less. How many men were there initially? 

   A.) 30
   B.) 24
   C.) 16
   D.) 20

Answer: Option 'B'

Let ‘x’ be the initial number of men 
Then, 1 work done = x × 40 
Then, x × 40 = (x + 8 ) (40 – 10) 
40x = 30x + 240 
10x = 240 
Therefore, x = 240/10 = 24 men.

49.

A’ sells an item to “B” at a profit of 40% and “B” sells it to “C” at a profit of 50%. Find the resultant profit percent.? 

   A.) 45%
   B.) 90%
   C.) 110%
   D.) 180%

Answer: Option 'C'

Let Rs.100 be the CP
A’s SP = Rs.140
B’s SP = Rs.210
Resultant profit = 210 – 100 =110
Resultant profit percent = 110 x 100/100 = 110%

50.

A customer purchased an office bag with a price tag of Rs.600 in a sale where 25% discount was being offered on the tag price. The customer was given a further discount of 10% on the amount arrived at after giving usual 25% discount. What was the final amount paid by the customer? 

   A.) Rs.390
   B.) Rs.405
   C.) Rs.540
   D.) Rs.565

Answer: Option 'B'

After 25% usual discount the price = Rs. 600 – 150 = Rs.450
After 10% further discount it will be = 450- 45 = Rs. 405.

51.

A person sold 3/5 of a consignment at a profit of 35% and the rest at a loss of 25%. If there was an overall profit of 715, what is the actual cost of the consignment?

   A.) 6000
   B.) 6300
   C.) 6500
   D.) 7000

Answer: Option 'C'

Let the total CP = ‘x’
Then first SP = 3x/5 × 135/100 = 81x/100
And the second SP = 2x/5 × 75/100 = 30x/100
:. Total SP = 81x/100 + 3x/100 = 111x/100.
SP – CP = profit, So, 111x/100 – x = 715
i.e 11x = 71500 and so, x = 71500/11 = 6500

52.

If the cost of 10 tables and 15 chairs is Rs.20000 what will be the cost of tables and 21 chairs? 

   A.) Rs.27500
   B.) Rs.28000
   C.) Rs.32000
   D.) Rs.36000

Answer: Option 'C'

The cost of 10 tables + 15 chairs = Rs.20000
Multiplying each term by 7/5, we get
Cost of 10 x 7/5 tables + 15 x 7/5 chairs = Rs.20000 x 7/5
= 14 tables + 21 chairs = Rs.28000.

53.

By selling a table for 350 instead of 400, loss per cent increase by 5%. The cost price of the table is

   A.) 1050
   B.) 417.50
   C.) 435
   D.) 1000

Answer: Option 'D'

The difference in prices = 400 – 350 = 50, which equal to 5% of the cost,
:. The cost price = 50 × 100/5 = 1000.

54.

Balls are bought at 9 for Rs.10/- and sold at 10 for Rs.9/-. Find the gain or loss percentage? 

   A.) 19%gain
   B.) 19%loss
   C.) 18%loss
   D.) 18%gain

Answer: Option 'B'

9 balls -----> Rs.10/- 
10 balls ----> Rs.9/- 
Note: In every time same in the cost price articles and selling price articles.
10(9  10) ==> 90  100 = Cost price 
9(10  9) ==> 90   81 = Selling price 
Then, 19/100 × 100 = 19 % Loss 

55.

If the ratio of the cost price and the selling price is 5 : 6, the gain per cent is 

   A.) 20%
   B.) 33 1/3%
   C.) 25%
   D.) 30%

Answer: Option 'A'

The profit = 6 – 5 = 1 unit of ratio
So, gain percent = 1 × 100/5 = 20%.

56.

A dealer sells his goods at cost price 900gm weight for 1kg his gain percentage is 

   A.) 9% Gain
   B.) 10% Gain
   C.) 11% Loss
   D.) 11 1/9% Gain

Answer: Option 'D'

Cost price ---> 900 
Selling price --->1000 
= ( 1000 ~ 900 )/900 × 100 ==> 100/900 × 100 = 11 1/9% gain 

57.

A person sells two fans for 3200. The cost price of the first fan is equal to the selling price of the second fan. If the first is sold at 40% loss and the second at 100% gain, what is total profit or loss? 

   A.) 160
   B.) 200
   C.) 240
   D.) 280

Answer: Option 'B'

The cost price of 1st
fan and SP of 2nd fan given to be equal, let it be 100.
On 1st fan there is a loss of 40%, So its SP = 60
Gain on 2nd fan is 100%, So, its CP = 50
:. Total cost price of two fans = 100 + 50 = 150
Total SP = 60 + 100 = 160
If total SP =160, then the corresponding cost price = 150
:. When total SP is 3200,
Then the cost price = 150/160 × 3200 = 3000 
Profit = 3200 – 3000 = 200.

58.

Sonika spent Rs. 45760 on the interior decoration for her home, Rs.27896 on buying Air conditioner and the remaining 28% of the total amount she had as cash with her. What was the total amount? 

   A.) 98540
   B.) 102300
   C.) 134560
   D.) None of these

Answer: Option 'B'

The Total expense = 45760 + 27896 = 73656 = 72% of the Total amount.
:. Total amount = 73656 × 100/72 = 102300.

59.

Balls are bought at 11 for Rs.10/- and sold at 10 for Rs.11/-. Find the gain or loss percentage? 

   A.) 21%loss
   B.) 21%gain
   C.) 31%loss
   D.) 31%gain

Answer: Option 'B'

11 balls -----> Rs.10/- 
10 balls -----> Rs.11/- 
Note: Number of articles bought is must equal to number of articles sold.
10(11  10) ==> 110   100 = Cost price 
11(10  11) ==> 110   121 = Selling price 
Then, 21/100 × 100 = 21 % Profit 

60.

The cost of 3 chairs and 10 tables is Rs.9856. What is the cost of 6 chairs and 20 tables? 

   A.) Rs.4046/-
   B.) Rs.4928/-
   C.) Rs.4250/-
   D.) Rs.19712/-

Answer: Option 'D'

Cost of 3 chairs + 10 tables = Rs.9856
Multiplying each term by ‘2’, we get
Cost of 6 chairs + 20 tables = Rs.9856 x 2 = Rs.19712/-


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