Jamb Mathematics Past Questions and Answers

Question 221:

• JAMB 2019

Marks	1	2	3	4	5
Frequency	2y - 2	y - 1	3y - 4	3 - y	6 - 2y

The table above is the distribution of data with mean equals to 3. Find the value of y.

A. 5
B. 2
C. 3
D. 6

Question 222:

• JAMB 2019

In the circle above, with centre O and radius 7 cm. Find the length of the arc AB, when < AOB = 57°.

A. 5.32 cm
B. 4.39 cm
C. 7.33 cm
D. 6.97 cm

Question 223:

• JAMB 2018

Find the values of x for which
\(\frac {x+2}{4}\) - \(\frac{2x - 3}{3}\) < 4

A. X < 8
B. X > -6
C. X < 4
D. X > -3

Question 224:

• JAMB 2018

A trader realises 10x - x\(^2\) Naira profit from the sale of x bags of corn. How many bags will give him the maximum profit?

A. 7
B. 6
C. 5
D. 4

Question 225:

• JAMB 2018

If y = 23\(_{five}\) + 101\(_{three}\) , find y, leaving your answer in base two

A. 1110
B. 10111
C. 11101
D. 111100