16. In a competitive exam, 5 marks are awarded for every correct answer and for every wrong answer, 2 marks are deducted. Sathwik and 32 marks in this examination. If 4 marks has been awarded for each correct answer and 1 mark had been deducted for each incorrect answer, Sathwik would have scored 34 marks. If Sathwik attempted all the questions, how many
questions were there in the test?
A. 20
B. 14
C. 12
D. 26
View Answer
Ans. D
17. Raju lends Rs. 3000 to Bharath and a certain sum to Charan at the same time at 6% per annum simple interest. If after 5 years, Raju altogether receives Rs. 1650 as the interest from Bharath and Charan, what is the sum lent to Charan?
A. Rs. 2500
B. Rs. 2750
C. Rs. 3250
D. Rs. 3300
View Answer
Ans. A
18. Train A leaves a station at a certain time and moves at a uniform speed. After 5 hours Train B leaves the station and moves in the same direction at a fixed speed or a speed of 72Km/hr. Train B catches up with Train A in 3 hours. What is the speed of Train A?
A. 45Km/hr
B. 27Km/hr
C. 36Km/hr
D. 30Km/hr
View Answer
Ans. B
19. A can do a job in 26 days. B is 30% more efficient than A. In how many days can B alone do the same job?
A. 18 days
B. 24 days
C. 23 days
D. 20 days
View Answer
Ans. D
20. If the mean of 29 observations is 33 and on adding one more observation the new mean becomes 34. What is the value of the 30th observation?
A. 55
B. 68
C. 63
D. 34
View Answer
Ans. B