Statistics and Average
If 3a +5b = 10 and 5a + 3b = 30, what is the average (arithmetic mean) of a and b?
- ক. 4
- খ. 2.5
- গ. 3.5
- ঘ. 4.5
উত্তরঃ 2.5
- ক. 14%
- খ. 17%
- গ. 20%
- ঘ. 9%
উত্তরঃ 20%
If p is less than q , which of the following is the greater than p and less than q?
- ক. (q – p)/2
- খ. pq/2
- গ. (p + q)/2
- ঘ. pq
উত্তরঃ (p + q)/2
- ক. 5n/m + 75
- খ. (70m + 75n)/(m + n)
- গ. 80
- ঘ. (5m + 75)/n
সঠিক উত্তরের জয় বিস্তারিত দেখুন
Average of P numbers is x and average of N numbers is y. Find the average of all of the numbers.
- ক. (Px + Ny)/(p + N)
- খ. (Px + Ny)/xy(P + N)
- গ. x + y
- ঘ. (x + y)/(P + N)
উত্তরঃ (Px + Ny)/(p + N)
- ক. z/x - z - y
- খ. 3V - Z - Y
- গ. V - Z - Y
- ঘ. ZY - V
উত্তরঃ 3V - Z - Y
- ক. 5 feet
- খ. 5 feet 1 inches
- গ. 5 feet 2 inches
- ঘ. 5 feet 3 inches
উত্তরঃ 5 feet 2 inches
- ক. 18
- খ. 21
- গ. 27
- ঘ. 54
উত্তরঃ 27
- ক. Tk.9.625
- খ. Tk.9.50
- গ. Tk.9.40
- ঘ. Tk.9.375
উত্তরঃ Tk.9.375
- ক. 6.1
- খ. 30.1
- গ. 30.3
- ঘ. 34.3
উত্তরঃ 34.3
- ক. 7.8
- খ. 9.8
- গ. 10
- ঘ. 12.4
সঠিক উত্তরের জয় বিস্তারিত দেখুন
The cost of making x units is Y = 5x + 10, the average cost of making 10 units is--
- ক. Tk. 5
- খ. Tk.6
- গ. Tk.7
- ঘ. Tk.8
উত্তরঃ Tk.6
- ক. 40 Tk.
- খ. 30 Tk.
- গ. 20 Tk.
- ঘ. 10 Tk.
উত্তরঃ 20 Tk.
- ক. -100
- খ. -50
- গ. 50
- ঘ. 100
উত্তরঃ -50
The average of three numbers is 7. If 2 of the numbers are zero, then what if the 3rd number?
- ক. 15
- খ. 17
- গ. 19
- ঘ. 21
উত্তরঃ 21
Average of the five consecutive even number is 8. Which is the smallest of the 5 numbers?
- ক. 4
- খ. 3
- গ. 5
- ঘ. 6
উত্তরঃ 4
The average of 20, 70 and x is 40. If the average of 20, 70, x and y is 50, then y =?
- ক. 100
- খ. 80
- গ. 70
- ঘ. 60
উত্তরঃ 80
Sum of P and Q is 72 and the value of R is 42. What is the average of P, Q and R?
- ক. 32
- খ. 34
- গ. 36
- ঘ. 38
উত্তরঃ 38
- ক. 100%
- খ. 94%
- গ. 84%
- ঘ. 96%
উত্তরঃ 100%
If the sum of (3, 7 and x) is 18, then the average of (3, 7 and x) is--
- ক. 6
- খ. 7
- গ. 8
- ঘ. 9
উত্তরঃ 6
If 6 and x have the same mean as 2, 4 and 24, what is the value of x?
- ক. 5
- খ. 10
- গ. 14
- ঘ. 36
উত্তরঃ 14
- ক. Tk.96.25
- খ. Tk.95.00
- গ. Tk.94.00
- ঘ. Tk.93.75
উত্তরঃ Tk.93.75
- ক. 135
- খ. 120
- গ. 270
- ঘ. None of these
উত্তরঃ 120
- ক. Tk.40000
- খ. Tk.43000
- গ. Tk.45000
- ঘ. Tk.60000
উত্তরঃ Tk.45000
If the sum of (8, 5 and x) is 21, then the average of (8, 5 and x) is--
- ক. 7
- খ. 9
- গ. 2
- ঘ. 3.5
উত্তরঃ 7
- ক. 30
- খ. 45
- গ. 15
- ঘ. None of these
উত্তরঃ 45
The average of a, b, c is 6 and a - b = 4, ab = 21, what is the value of c?
- ক. 6
- খ. 7
- গ. 8
- ঘ. 9
উত্তরঃ 8
- ক. 57 kgs
- খ. 56.8 kgs
- গ. 58.2 kgs
- ঘ. 52.2 kgs
উত্তরঃ 57 kgs
- ক. 6.5
- খ. 4
- গ. 3
- ঘ. 3.5
উত্তরঃ 3
- ক. 8.7
- খ. 30.1
- গ. 30.3
- ঘ. 34.6
উত্তরঃ 34.6
If the average of four numbers k, 2k + 3, 3k - 5, and 5k + 1 is 63. What is the value of k?
- ক. 11
- খ. 15.75
- গ. 22
- ঘ. 23
উত্তরঃ 23