SSC CGL (SSC Combined Graduate Level) Mathematics: Questions 197  201 of 425
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Question number: 197
Question
A person buys certain number of marbles at 30 per rupee and equal number at 40 per rupee. He mixes them and sells them at 12 per rupee. His gain or loss in the transaction is (Paper  I)
Choices
Choice (4)  Response  

a.  24 % gain 

b.  47 % gain 

c.  40 % loss 

d.  20 % loss 

Question number: 198
» Average
Question
The average age of 50 students of a class is 12 years. When 10 new students are admitted, the average age is increased by 0.5 years. The average age of new students is (Paper I)
Choices
Choice (4)  Response  

a.  11 years 

b.  15 years 

c.  12 years 

d.  14 years 

Question number: 199
Question
A and B together can do a piece of work in 9 days, B and C in 18 days, and A and C in 12 days. The number of days all of them working together take to complete the work is (Paper  I)
Choices
Choice (4)  Response  

a.  5 

b.  8 

c.  10 

d.  19 

Question number: 200
» Interest
Question
Rs. 500 was invested at 12 % per annum simple interest and a certain sum of money invested at 10 % per annum simple interest. If the sum of the interests on both the sums after 4 years is Rs. 480, the later sum of money is (Paper I)
Choices
Choice (4)  Response  

a.  Rs. 1200 

b.  Rs. 1400 

c.  Rs. 1100 

d.  Rs. 1300 

Question number: 201
Question
Three numbers which are coprime to one another are such that the product of the first two is 2773 and that of the last two is 4189. The sum of the three numbers is (Paper I)
Choices
Choice (4)  Response  

a.  170 

b.  177 

c.  190 

d.  193 
