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Infosys Aptitude Questions and Answers with Explanation
- Number of Questions: 10
- Time Duration: 25 mins.
Topics
- Ratio and Proportion
- Boats and Streams
- Simple Interest
- Averages
- Partnership
- Problems on Boats and Streams
- Profits & Loss
- Percentages
- Compound Interest
- Volumes
- Probability
Every student dreams of working for a multinational corporation such as Infosys. It is also a dream for the majority of pupils; nonetheless, excellent preparation is essential in order to achieve your goal. So, to help you turn your hard effort into smart work, we've compiled a compilation of Infosys Aptitude Questions and Answers with Explanations. As a result, job searchers can put all of them to use and learn something. Because Infosys will hire the most skilled, energetic, and talented individuals, the exam will be conducted by Infosys. Where Infosys offers good work possibilities in IT, consulting, and business process management (BPM). Applicants should therefore prepare for the exam by practicing Infosys Aptitude Questions and Answers.
Question and Answers On Infosys Aptitude
Most students nowadays are having a difficult time finding work and looking for appropriate learning opportunities. We have listed Infosys Aptitude Questions and Answers For Freshers 2018, 2019, and 2020 Batch for the advantage of those types of candidates. Job seekers who are impatiently awaiting a chance can therefore practice Infosys Aptitude Questions and Solutions.
Explanatory Samples of Infosys Aptitude Questions and Answers
1. A shop dealer makes his goods 25% above CP and then while selling gives a discount of 12% on MP. Find his profit %?
A. 15%
B. 12%
C. 11%
D. 10%
Answer – D. 10%
Explanation:
Let Cost Price (CP) = 100
Market Price (MP) = 125
Profit = 125*88/100 = 110
110 – 100 = 10%.
2. The average age of 30 boys in a class is equal to 14 years. When the age of the class teacher is included the average becomes 15 years. Find the age of the class teacher?
A. 45
B. 42
C. 50
D. 44
Answer – A. 45
Explanation:
Given that
Total ages of 30 boys = 14 x 30 = 420 years
Total age when class teacher is included = 15 x 31 = 465 years
Age of class teacher = 465 – 420 = 45 years
Hence, the age of the class teacher is 45 years.
3. The average of 11 numbers is 10.9. If the average of the first six is 10.5 and that of the last six is 11.4 the sixth number is?
A. 11.4
B. 11.5
C. 11.0
D. 11.3
Answer – B. 11.5
Explanation:
Given, 1 to 11 = 11 * 10.9 = 119.9
1 to 6 = 6 * 10.5 = 63
6 to 11 = 6 * 11.4 = 68.4
63 + 68.4 = 131.4 – 119.9 = 11.5
Therefore, 6th number = 11.5
4. If P can do a work in 6 days and Q can do the same work in 8 days. If R who can do the same work in 12 days, joins them, then the work will be completed in how many days?
A. 7/3 days
B. 8/3 days
C. 10/3 days
D. 11/3 days
Answer – B. 8/3 days
Explanation:
1/6 + 1/8 + 1/12 = 1/d.
D = 8/3 days
Therefore, the work will be completed in 8/3 days.
5. A and B rent a pasture for 10 months. A put in 80 cows for 7 months. How many can B put in for the remaining 3 months, if he pays half as much again as A?
A. 120
B. 280
C. 180
D. 200
Answer – B. 280
Explanation:
According to the given data
80* 7: x* 3 = 1:1 1/2
560: 3x = 2: 3
x = 280
6. Rama Krishna can finish a work in 20 days and Suresh in 25 days. They both work together for 5 days and then Suresh goes away. In how many days will Rama Krishna complete the remaining work?
A. 10 days
B. 11 days
C. 8 days
D. 9 days
Answer – B. 11 days
Explanation:
Let’s assume the completion of remaining work by Ramesh is x then, according to the given information
(5 + x)/20 + 5/25 = 1 => x = 11 days
7. How much water must be added to a bucket which contains 40 liters of milk at the cost price of Rs.3.50 per liter so that the cost of milk reduces to Rs.2 per liter?
A. 25 liters
B. 28 litres
C. 30 liters
D. 35 liters
Answer – C. 30 liters
Explanation:
Total cost price =Rs(40 x 7/2) = Rs.140
Cost per litre =Rs.2
Total quantity = 140/2 = 70 liters.
Water to be added =(70-40) =30 liters.
8. A man spends 60% of his income. His income is increased by 20% and his expenditure also increases by 10%. Find the percentage decrease in his saving?
A. 15%
B. 20%
C. 25%
D. 10%
Answer – D. 10%
Explanation:
Let us assume initially income is 100.
So, expenditure = 60 and saving = 40
Now income is increased by 20% that is 120.
So, expenditure = (70/100)*120 = 84 and saving = 36
so % percent decrease in saving = (4/40)*100 = 10%
9. 5 men and 10 boys can do a piece of work in 30 days and 8 men and 12 boys can do the work in 20 days then the ratio of daily work done by a man to that of the boy.
A. 6:1
B. 7:3
C. 4:5
D. 5:1
Answer – A. 6:1
Explanation:
5m + 10b = 1/30 and 8m + 12b = 1/20
after solving we get m = 1/200 and b = 1/1200
so required ratio = (1/200) : (1/1200) = 6:1
Hence, the ratio of daily work done by a man to that boy is 6:1.
10. Rani mixes 70kg of sugar worth Rs.28.50 per kg with 100kg of sugar worth Rs.30.50 per kg. At what rate shall he sell the mixture to gain 10 %?
A. Rs.29.75
B. Rs.32.64
C. Rs.31.50
D. Rs.30.46
Answer – B. Rs.32.64
Explanation:
70/100 = 100x – 30.50(110)/28.50(110)-100x
0.7 = 100x-3355/3135-100x
2194.5 – 70x = 100x-3355
170x = 5549.5
X = 32.64
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