Jamb Mathematics Past Questions and Answers

Question 341:

• JAMB 2015

Find x if 132_x = 70 _eight.

A. 5
B. 3
C. 6
D. 1

Question 342:

• JAMB 2015

A man sells his new brand car for N420,000 at a gain of 15%. What did it cost him?

A. N410,000
B. N365, 217
C. N157, 250
D. N257,000

Question 343:

• JAMB 2015

Find the value of x if \( [ 1 ÷ 64^{(x + 2)}]= [4^{(x − 3)} ÷ 16^x ] \)

A. \( \frac{3}{2} \)
B. \( \frac{2}{3} \)
C. \( \frac{1}{3} \)
D. \( -\frac{3}{2} \)

Question 344:

• JAMB 2015

A pipe made of metal 10cm thick has an external radius of 11cm. find the area of metal in making 2.4cm of pipe

A. 24πcm²
B. 21πcm²
C. 15πcm²
D. 17πcm²

Question 345:

• JAMB 2015

Solve x² − 2x − 3 = 0

A. X = 2 or 1
B. X = 3 or -1
C. X = 1 or 0
D. X = 1 or 2