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Mathematical Series Questions for Competitive Exams

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Q :  A shopkeeper earns a profit equal to the selling price of 11 meter by selling 22-meter cloth. Find the profit percent.

(A) 50%

(B) 52%

(C) 45%

(D) 55%

Correct Answer : A

Q :  A person sells two objects in Rs 5000 each. He sells one for 20% profit and another for 20% loss. Find his total profit or loss percent in the whole transaction.

(A) 4 % profit

(B) 4% Loss

(C) 20% Profit

(D) No Profit and Loss

Correct Answer : B

Q :  

A man buys 12 articles for Rs. 12 /- and sells them at the rate of Rs.1.25 per article. His gain percentage is: 

(A) 20

(B) 25

(C) 15

(D) 18

Correct Answer : B

Q :  

If 5500 copies are published and the transportation cost on them amounts to Rs. 82,500, then what should be the selling price of the book so that the publisher can earn a profit of 25%?

(A) Rs. 187.50

(B) Rs. 191.50

(C) Rs. 175

(D) Rs. 180

Correct Answer : A
Explanation :
For the publisher to earn a profit of 25% S.P = 125% of C.P.
Also Transportation Cost = 10% of C.P.
Let the S.P of 5500 books be Rs. x.
Then, 10 : 125 = 82500 : x ⇒ x = Rs.  = Rs. 1031250.
⸫ S.P. of one book = Rs. = Rs. 187.50. 



Q :  

A man wanted to sell an article with 20% profit: but he actually sold at 20% loss for Rs. 480, At what price he wanted to sell it to earn the profit? 

(A) Rs.720

(B) Rs.840

(C) Rs.600

(D) Rs . 750

Correct Answer : A

Q :  

A house and a shop were sold for Rs. 1 lakh each, In this transaction, the house sale resulted into 20 % loss whereas the shop sale into 20 % profit. The entire transaction resulted in:

(A) no loss no gain

(B) gain of Rs.

(C) loss of Rs. lakh

(D) loss of lakh

Correct Answer : C

Q :  One quality of wheat at Rs. 9.30 per kg is mixed with another quality at a certain rate in the ratio 8: 7. If the mixture so formed be worth Rs. 10 per kg, what is the rate per kg of the second quality of wheat?

(A) Rs. 10.40

(B) Rs. 10.60

(C) Rs. 10.80

(D) Rs. 11

Correct Answer : C

Q :  In what ratio must rice at Rs. 9.30 per kg be mixed with rice at Rs. 10.80 per kg so that the mixture be worth Rs. 10 per kg?

(A) 8 : 5

(B) 5 : 8

(C) 8 : 7

(D) 7 : 8

Correct Answer : C

Q :  A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is:

(A) 450 kg

(B) 500 kg

(C) 600 kg

(D) 650 kg

Correct Answer : C

Q :  How many kilograms of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs.9.24 per kg?

(A) 35 kg

(B) 43kg

(C) 52 kg

(D) 63 kg

Correct Answer : D

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