- 70
- 80
- 90
- 98
- b
-
Total Problems=60
A Student completes 30 Problems in 20 minutes
Remaining Problems=60-30=30
Ramingining Time=60-20=40
30 Problems solved=40 minutes
01 Problem solved=40/30*60=80 Seconds
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.
The average of 5 numbers is 13. If the average of 4 of these numbers is 10, then fifth number is _____
- 25
- 35
- 40
- 45
- a
-
Average of 4 numbers=10 (40/4=10)
Average of 5 numbers=13 (65/5=13)
Difference of sum=65-40=25
Fifth number=25
If f(x)=3x-3 then _____
- f(1)=2
- f(1)=1
- f(1)=0
- f(1)=3
- c
Tick the false statement:
- “__” is a binary operation on N
- “/” is not a binary operation on N
- “+” is a binary operation on N
- “x” is a binary operation on N
- a
-
Addition, Subtraction, Multiplication and Division are examples of Binary Operations.
Anwar has six times as much money as Meera. If Anwar gives Rs.80 to Meera, both of them will have equal amounts of money. At the beginning Meera has money ____
- 32
- 62
- 82
- 192
- a
The value of (1-Cos2x) X (1+Cot2x)=_____
- 1
- 2
- 4
- a
If d > 0 and 5d2-45=0, what is the value of d?
- -3
- -9,+9
- -3,+3
- +3
- d
What is the average of first 150 natural numbers?
- 50
- 55.5
- 68.5
- 75.5
- d
The average of the set of the numbers is 65,85,70,90 and 105 is _____
- 80
- 83
- 85
- 87
- b
-
Sum of Numbers=65+85+70+90+105=415
Total Numbers=5
Average=Sum of Numbers / Total Numbers
Average=415/5=83
The average age of 3 boys is 15 years and their ages are in proportions 3:5:7. The age in year of the younger boys is:
- 08
- 09
- 10
- 11
- a
-
Suppose,
Age of 3 Boys=3x+5x and 7z
According to Questions:
(3x+5x+7y)/3=15
15x/3=15
15x=15*3
15x=45
x=45/15
x=3
According to Question, the age of younger boys=3x
3x=3(3)=9