NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 46:

• JAMB 2018

A school girl spends \(\frac{1}{4}\) of her pocket money on books and \(\frac{1}{3}\) on dress. What fraction remains?

A. \(\frac{5}{6}\)
B. \(\frac{7}{12}\)
C. \(\frac{5}{12}\)
D. \(\frac{1}{6}\)

Question 47:

• JAMB 2018

Simplify

\(\frac {25^{\frac{2}{3}} \div 25^{\frac{1}{6}}} {(\frac{1}{5})^{\frac{7}{6}} \div (\frac{1}{5})^{\frac{1}{6}}}\)

A. 25
B. \(\frac{1}{5}\)
C. 1
D. \(\frac{1}{25}\)

Question 48:

• JAMB 2018

What is the place value of 9 in the number 3.0492?

A. \(\frac{9}{10000}\)
B. \(\frac{9}{1000}\)
C. \(\frac{9}{100}\)
D. \(\frac{9}{10}\)

Question 49:

• JAMB 2018

If the simple interest on a sum of money invested at 3% per annum for 2\(\frac{1}{2}\) years is N123, find the principal.

A. N676.50
B. N820
C. N1,640
D. N4,920

Question 50:

• JAMB 2018

A machine valued at N20,000 depreciates by 10% every year. What will be the value of the machine at the end of two years?

A. N16,200
B. N14,200
C. N12,000
D. N8,000