Year : 
2016
Title : 
Mathematics (Core)
Exam : 
JAMB Exam

Paper 1 | Objectives

11 - 20 of 50 Questions

# Question Ans
11.

If line p = 5x + 3 is parallel to line p = wx + 5. Find the value of w.

A. 7

B. 3

C. 6

D. 5

Detailed Solution

There is an explanation video available below.
12.

Evaluate \(\int\)(cos4x + sin3x)dx

A. sin4x - cos3x + k

B. sin4x + cos3x + k

C. \(\frac{1}{4}\)sin4x - \(\frac{1}{3}\)cos3x + k

D. \(\frac{1}{4}\)sin4x + \(\frac{1}{3}\)cos3x + k

Detailed Solution

\(\int (\cos 4x + \sin 3x) \mathrm d x\)
= \(\frac{1}{4} \sin 4x - \frac{1}{3} \cos 3x + k\)
There is an explanation video available below.
13.

If x10 = 235. Find x

A. 15

B. 12

C. 14

D. 13

Detailed Solution

There is an explanation video available below.
14.

The pie chart above shows the distribution of subjects offered by students in SSS III level. If 80 students enrolled in the class. What is the size of the angle of the sector in economics?

A. 24o

B. 39o

C. 32o

D. 36o

Detailed Solution

There is an explanation video available below.
15.

Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1.

A. 32

B. 36

C. 33

D. 40

Detailed Solution

Range = 34 - (-6) = 34 + 6 = 40
There is an explanation video available below.
16.

The bar chart above shows the number of visitors received in a week. How many visitors were received on Friday, Tuesday and Sunday?

A. 17

B. 22

C. 20

D. 16

Detailed Solution

There is an explanation video available below.
17.

Factorize k2 - 2kp + p2.

A. (k +p)2

B. (k - p)2

C. k2 + p2

D. k2 - p2

Detailed Solution

There is an explanation video available below.
18.

Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.

A. (12 + 4\(\pi\))cm

B. (24 + 4\(\pi\))cm

C. (12 + 6\(\pi\))cm

D. (24 + 6\(\pi\))cm

Detailed Solution

Perimeter = 2r + \(\frac{\theta}{360}\) x 2\(\pi\)r
= 2(12) + \(\frac{60}{360}\) x 2 x \(\pi\) x 12
= (24 + 4\(\pi\))cm
There is an explanation video available below.
19.

\(\begin{array}{c|c}
Marks & 2 & 3 & 4 \\
\hline
Frequency & 4 & 4 & y
\end{array}\)

The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

A. 6

B. 8

C. 7

D. 5

Detailed Solution

There is an explanation video available below.
20.

Given U = {x: x is a positive integer less than 15} and P = {x: x is even number from 1 to 14}. Find the compliment of P.

A. {1, 3, 5, 7, 9, 11, 13, 15}

B. {2, 3, 5, 7, 9, 11, 13}

C. {1, 3, 5, 7, 9, 11, 13}

D. {2, 3, 5, 7, 11, 15}

Detailed Solution

U = {1, 2, 3, 4, 5......14}
P = {2, 4, 6, 8, 10, 12, 14}
P' = {1, 3, 5, 7, 9, 11,13}
There is an explanation video available below.
11.

If line p = 5x + 3 is parallel to line p = wx + 5. Find the value of w.

A. 7

B. 3

C. 6

D. 5

Detailed Solution

There is an explanation video available below.
12.

Evaluate \(\int\)(cos4x + sin3x)dx

A. sin4x - cos3x + k

B. sin4x + cos3x + k

C. \(\frac{1}{4}\)sin4x - \(\frac{1}{3}\)cos3x + k

D. \(\frac{1}{4}\)sin4x + \(\frac{1}{3}\)cos3x + k

Detailed Solution

\(\int (\cos 4x + \sin 3x) \mathrm d x\)
= \(\frac{1}{4} \sin 4x - \frac{1}{3} \cos 3x + k\)
There is an explanation video available below.
13.

If x10 = 235. Find x

A. 15

B. 12

C. 14

D. 13

Detailed Solution

There is an explanation video available below.
14.

The pie chart above shows the distribution of subjects offered by students in SSS III level. If 80 students enrolled in the class. What is the size of the angle of the sector in economics?

A. 24o

B. 39o

C. 32o

D. 36o

Detailed Solution

There is an explanation video available below.
15.

Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1.

A. 32

B. 36

C. 33

D. 40

Detailed Solution

Range = 34 - (-6) = 34 + 6 = 40
There is an explanation video available below.
16.

The bar chart above shows the number of visitors received in a week. How many visitors were received on Friday, Tuesday and Sunday?

A. 17

B. 22

C. 20

D. 16

Detailed Solution

There is an explanation video available below.
17.

Factorize k2 - 2kp + p2.

A. (k +p)2

B. (k - p)2

C. k2 + p2

D. k2 - p2

Detailed Solution

There is an explanation video available below.
18.

Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.

A. (12 + 4\(\pi\))cm

B. (24 + 4\(\pi\))cm

C. (12 + 6\(\pi\))cm

D. (24 + 6\(\pi\))cm

Detailed Solution

Perimeter = 2r + \(\frac{\theta}{360}\) x 2\(\pi\)r
= 2(12) + \(\frac{60}{360}\) x 2 x \(\pi\) x 12
= (24 + 4\(\pi\))cm
There is an explanation video available below.
19.

\(\begin{array}{c|c}
Marks & 2 & 3 & 4 \\
\hline
Frequency & 4 & 4 & y
\end{array}\)

The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

A. 6

B. 8

C. 7

D. 5

Detailed Solution

There is an explanation video available below.
20.

Given U = {x: x is a positive integer less than 15} and P = {x: x is even number from 1 to 14}. Find the compliment of P.

A. {1, 3, 5, 7, 9, 11, 13, 15}

B. {2, 3, 5, 7, 9, 11, 13}

C. {1, 3, 5, 7, 9, 11, 13}

D. {2, 3, 5, 7, 11, 15}

Detailed Solution

U = {1, 2, 3, 4, 5......14}
P = {2, 4, 6, 8, 10, 12, 14}
P' = {1, 3, 5, 7, 9, 11,13}
There is an explanation video available below.