Mathematics 2013 Jamb Past Questions and Answers

Question 1 :

• JAMB 2013

Convert 27₁₀ to another number in base three

A. 1001₃
B. 1010₃
C. 1100₃
D. 1000₃

Question 2 :

• JAMB 2013

3 girls share a number of apples in the ration 5:3:2. If the highest share is 40 apples, find the smallest share

A. 36
B. 24
C. 16
D. 38

Question 3 :

• JAMB 2013

Evaluate \(\frac{1.25 \times 0.025}{0.05}\), correct to 1 decimal place

A. 0.6
B. 6.2
C. 6.3
D. 0.5

Question 4 :

• JAMB 2013

Calculate the time taken for N3000 to earn N600 if invested at 8% simple interest

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

Question 5 :

• JAMB 2013

Simplify \(\frac{3^{-5n}}{9^{1-n}} \times 27^{n + 1}\)

A. 3²
B. 3³
C. 3⁵
D. 3