- 23
- 25
- 27
- 29
- c
-
729=27
625=25
400=20
900=30
Mathematics MCQs
All Mathematical MCQs from different papers are solved in this sections. All Math related MCQs have uploaded in this portion of ETEST Website. Visitors should visit ETEST Website regularly for Best Jobs Tests Preparation because ETEST Team updates ETEST Website on daily basis.
3/1000 written as a fraction is:
- 0.03
- 0.003
- 0.0003
- None of these
- B
-
0.071
0.0291
0.0054
(272-32)(124+176)/(17 15-15)=_____
- 200
- 240
- 275
- 300
- d
If a*b=2a+3b, then the value of 2*3+3*4 is _____
- 21
- 27
- 31
- 39
- C
What is the least number to be added to 631 to make it perfect square?
- 25
- 30
- 35
- 45
- d
-
631+45=676
676=26
What is greatest possible length of scale that can be used to measure exactly the lengths?
- 20 Cm
- 30 Cm
- 40 Cm
- 50 Cm
- B
The average of 7 consecutive numbers is 20. The largest of these numbers is _____
- 21
- 22
- 23
- 24
- C
In a class of 52 students, the number of boys is two less than the number of girls. Average weight of the boys is 42 Kg, while the average weight of all students is 40 Kg. Approximately what is the average Wight of girls?
- 40 Kg
- 38 Kg
- 35 Kg
- 30 Kg
- B
-
All Students=52
Boys in two less than girls=25
Girls=27
Total Weight of boys=25*42=1050
Total Weight of all students=40*52=2080
Total Weight of girls=2080-1050=1030
Average Weight of Girls=1030/27=38.14 kg
If the arithmetic mean of 6 numbers is 45, what is the total sum of these numbers?
- 27
- 45
- 150
- 270
- d
-
Sum of Observations=x
No of Observations=06
Mean=Sum of Observations / No of Observations
Mean=x/6
45=x/6
45*6=x
270=x
The mean of 100 items was found to be 30. If at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11. Then correct mean is _____
- 29.8
- 29.9
- 30.0
- 30.1
- B
