Important Questions of Mathematics
1. What is the time difference between 8:45 am and 2:30 pm?
A. 5 hrB. 5 hr 30 min
C. 5 hr 45 min
D. 5 hr 35 min
2. The ratio of the volume of two cubes is 27: 64, the ratio of their total surface area is
A. 3: 4B. 9: 16
C. 27: 64
D. 3: 8
3. The mean of 20 items is 55. If two items 45 and 30 are removed, the new mean of the remaining items is
A. 65.1B. 65.3
C. 56.9
D. 56
4. Which of the following is a perfect square?
A. 16831B. 17951
C. 18971
D. 19881
5.20 students of a class obtained the following respective marks out of 100 marks in subject Mathematics:
54, 46, 24, 36, 84, 70, 16, 58, 6, 82, 44, 54, 32, 64, 8, 66, 52, 28, 16 and 30 Grouped frequency distribution table of above will be
A.
B.
C.
D.
Note: Write your answers in the comment section.
The Answers of Revision Score Up Series Day-8
1. Ans. D.
2. Ans. B.
3. Ans. D.
4. Ans. D.
5. Ans. C.
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