Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
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Question 1 of 5
1. Question
Average age of four member of A’s family 4 years ago is 32.Three years ago a new baby born. What is the average age of A’s family after 5 years?
Correct
Answer: D
Explanation
Total age of A’s family 4 years ago is =32*4=128
Total age of all member after 5 years is=172
So average age is=172/5=34.4 years
Incorrect
Answer: D
Explanation
Total age of A’s family 4 years ago is =32*4=128
Total age of all member after 5 years is=172
So average age is=172/5=34.4 years
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Question 2 of 5
2. Question
A man bought 15 items at Rs.120 each, 13 items at Rs 110 each, and 12 items at Rs.130.Find average cost of item?
Correct
Answer: C
Explanation
Total amount spend by the man is
=15*120+13*110+12*130=4790
Total item brought by the man is=15+13+12=40
So average cost of the item is=4790/40=119.75
Incorrect
Answer: C
Explanation
Total amount spend by the man is
=15*120+13*110+12*130=4790
Total item brought by the man is=15+13+12=40
So average cost of the item is=4790/40=119.75
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Question 3 of 5
3. Question
The average expenditure of a man for the first six month is Rs.12000 and for the next six months is Rs.10000.If save 14000 in that year the find average monthly income?
Correct
Answer: B
Explanation
Total expenditure in first 6 months is=12000*6=72000
Total expenditure in last 6 month is=10000*6=60000
Total income of the man in a year is =72000+60000+14000=146000
So average income in a month is =146000/12=12166.66
Incorrect
Answer: B
Explanation
Total expenditure in first 6 months is=12000*6=72000
Total expenditure in last 6 month is=10000*6=60000
Total income of the man in a year is =72000+60000+14000=146000
So average income in a month is =146000/12=12166.66
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Question 4 of 5
4. Question
There are 100 students in three departments [X, Y and Z] of a college. Average marks of all the student is 82.7. Average marks of X and Z is 83. Average marks of Y are 82, then find number of students in Y?
Correct
Answer: D
Explanation
Total marks of 100 students is 100*82.7=8270
Let, the number of student in department Y is a, so
number of student in X and Z department is=100-a
So according to the question,
82a+ (100-a)*83=8270
Or,-a=-30
Or, a=30
So number of student in Y is 30.
Incorrect
Answer: D
Explanation
Total marks of 100 students is 100*82.7=8270
Let, the number of student in department Y is a, so
number of student in X and Z department is=100-a
So according to the question,
82a+ (100-a)*83=8270
Or,-a=-30
Or, a=30
So number of student in Y is 30.
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Question 5 of 5
5. Question
Average weight of 42 students is 54kg. A new student come and average weight of whole class increases by 1kg.What is the weight of the new student?
Correct
Answer: A
Explanation
Total weight of 42 students is =54*42=2268
Total weight of 43 students is=55*43=2365
So weight of new student is=2365-2268=97
Incorrect
Answer: A
Explanation
Total weight of 42 students is =54*42=2268
Total weight of 43 students is=55*43=2365
So weight of new student is=2365-2268=97
