Evaluate (212)3 – (121)3 + (222)3
A
(313)3
B
(1000)3
C
(1020)3
D
(1222)3
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2
Factorise (4a + 3) 2 – (3a – 2)2
A
(a + 1)(a + 5)
B
(a – 5)(7a – 1)
C
(a + 5)(7a + 1)
D
a(7a + 1)
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3
Find all median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119
A
131
B
125
C
123
D
120
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4
Find all real number x which satisfy the inequality 13 (x + 1) – 1 > 15(x + 4)
A
x < 11
B
x < -1
C
x > 6
D
x > 11
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5
Express each number in 0.02174×1.20470.023789 to two significant figures and then evaluate
A
0
B
0.9
C
1.1
D
1.2
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6
Four boys and ten girls can cut a field first in 5 hours. If the boys work at 54 the rate at which the girls work, how many boys will be needed to cut the field in 3 hours?
A
180
B
60
C
25
D
20
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7
What is the circumference of latitude 0oS if R is the radius of the earth?
A
cos θ
B
2πR cos θ
C
R sin θ
D
2 π r sin θ
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8
A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room
A
1517
B
817
C
815
D
1217
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9
The goals scored by 40 football teams from three league divisions are recorded below
| No of goals | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
| Frequency | 4 | 3 | 15 | 16 | 1 | 0 | 1 |
What is the total number of goals scored by all the teams?
A
21
B
40
C
91
D
96
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10
In a class of 150 students, the sector in a pie chart representing the students offering physics has angle 12o. How many students are offering physics?
A
18
B
15
C
10
D
5
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If log102 = 0.3010 and log103 = 0.4771, evaluate log104.5 without using the logarithm tables.
A
0.3010
B
0.4771
C
0.6532
D
0.9542
↪ Answer
12
Simplify 324−4x22x+18
A
2(x – 9)
B
2(9 + x)
C
81 – x2
D
-2(x – 9)
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13
In preparing rice cutlets, a cook used 75g of rice, 40g of margarine, 105g of meat and 20g of bread crumbs. Find the angle of the sector which represent meat in a pie chart?
A
30o
B
60o
C
112.5o
D
157.5o
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14
The angle of a sector of a circle radius 10.5 cm is 48o. Calculate the perimeter of the sector.
A
25.4cm
B
25.4cm
C
25.6cm
D
29.8cm
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15
What is the product of 275, (3)−3 and (15)−1?
A
5
B
3
C
1
D
125
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16
A crate of soft drinks contains 10 bottle of Coca-Cola 8 of Fanta and 6 of Sprite. If one bottle is selected at random, what is the probability that it is Not a Coca-Cola bottle?
A
512
B
13
C
34
D
712
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17
In this fiqure, PQ = PR = PS and SRT = 68o. Find QPS
A
136o
B
124o
C
112o
D
68o
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18
Find the gradient of the line passing through the points (-2, 0) and (0, 4)
A
2
B
-4
C
-2
D
4
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19
Find the equation of the line through the points (5, 7) parallel to the line 7x + 5y = 12.
A
5x + 7y = 120
B
7x + 5y = 70
C
x + y = 7
D
15x + 17y = 90
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20
If N225.00 yields N27.00 in x years simple interest at the rate of 4% per annum, find x.
A
3
B
4
C
12
D
17
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The post Jamb Cbt 2021 Mathematics Likely Questions and Answers appeared first on Oliveloaded.com.
The post Jamb Cbt 2021 Mathematics Likely Questions and Answers appeared first on Oliveloaded.com.
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