Quantitative Aptitude Quiz Set-08

Quantitative Aptitude Quiz Set-08

 

 

 

 

Q01. An ore contains 20% of an alloy that has 85% iron. Other than this, in the remaining 80% of the ore, there is no iron. What is the quantity of ore (in kg) needed to obtain 60 kg of pure iron? (upto two decimal points)

(a) 366 kg

(b) 352.94 kg
(c) 267 kg

(d) 267 kg
(e) 366.58 kg

 

Answer: (b) 352.94 kg

Q02. A shopkeeper buys 144 items at 1.8 Rs each. But later he realized that 13 % of the total items are defected and could not be sold. He sells the remaining at Rs. 2.4 each. What is his overall gain percentage?

(a) 14  22/27%

(b) 14  20/27%

(c) 15%
(d) 15 4/9 %

(e) None of these

 

Answer: (a) 14  22/27%

Q03. A person invests money in 3 different schemes for 3 years, 5 years and 6 years at 10%, 12% and 15% simple interest respectively. At the completion of each scheme, he gets the same interest. The ratio of his investments is

(a) 2:3:6

(b) 2:5:6

(c) 6:5:2
(d) 6:5:3

(e) None of these

 

Answer: (e) None of these

Q04. Amit can do a piece of work in 24 days, Bhuvan can do the same work in 16 days, and Chirag can do the same job in th time required by both Amit and Bhuvan. Amit and Bhuvan work together for 6 days, then Chirag completes the job. How many days did Chirag work?

(a) 2

(b) 4

(c) 2
(d) 2

(e) None of these

 

Answer: (d) 2

Q05. A sells a horse to B for Rs. 9720, thereby losing 19 per cent, B sells it to C at a price which would have given A 17 per cent profit. Find B’s gain.

(a) Rs. 4320

(b) Rs. 4610

(c) Rs. 4260
(d) Rs. 4160

(e) None of these

 

Answer: (a) Rs. 4320

Q06. The average age of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the average would be 21. What are the ages of A, B and C respectively?

(a) 22, 18, 20

(b) 18, 22, 20
(c) 22, 20, 18

(d) 18, 20, 22
(e)None of these

 

Answer: (a) 22, 18, 20

Q07. In an election between 2 candidates, 75% of the voters cast their votes, out of which 2% votes were declared invalid. A candidate got 18522 votes which were 75% of the valid votes. The total number of voters enrolled in the election was:

(a) 36000

(b) 36400
(c) 33600

(d) 34800
(e) None of these

 

Answer: (c) 33600

Q08. Two vessels A and B contains milk and water mixed in the ratio 8:5 and 5:2 respectively. The ratio in which these two mixture be mixed to get a new mixture containing 69 % milk is

(a) 3:5

(b) 5:2

(c) 5:7
(d) 2:7

(e) None of these

 

 Answer: (d) 2:7

Q09. The length of each side of a rhombus is equal to the length of the side of square whose diagonal is √ If the length of the diagonals of rhombus are in ratio 3:4, then its area (in cm2) is:

(a) 6144 cm2

(b) 6515 cm2
(c) 6554 cm2

(d) 6600 cm2
(e) None of these

 

Answer: (a) 6144 cm2