Decimal Places - Mathematics Jamb Past Questions and Answers

Question 6 :

• JAMB 1986

Evaluate (212)₃ - (121)₃ + (222)₃

A. (313)₃
B. (1000)₃
C. (1020)₃
D. (1222)₃

Question 7 :

• JAMB 1988

Find correct to one decimal place, 0.24633 \(\div\) 0.0306

A. 0.8
B. 1.8
C. 8.0
D. 8.1

Question 8 :

• JAMB 1989

What is the different between 0.007685 correct to three significant figures and 0.007685 correct to four places of decimal?

A. 10^-5
B. 7 x 10^-4
C. 8 x 10^-5
D. 10^-6

Question 9 :

• JAMB 1991

Find correct to 3 decimal places (\(\frac{1}{0.05}\) + \(\frac{1}{5.005}\)) - (0.05 x 2.05)

A. 99.998
B. 98.999
C. 89.899
D. 9.998

Question 10 :

• JAMB 1994

Evaluate \(\frac{0.36 \times 5.4 \times 0.63}{4.2 \times 9.0 \times 2.4}\)

A. 0.013
B. 0.014
C. 0.14
D. 0.13