NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 161:

• JAMB 1978

The smallest number such that when it is divided by 8 has a remainder of 6 and when it is divided by 9, has a remainder of 7 is

A. 387
B. 493
C. 502
D. 441
E. 634

Question 162:

• JAMB 1979

\((1.28 \times 10^{4}) \div (6.4 \times 10^{2})\) equals

A. 2 x 10^-5
B. 2 x 10^-1
C. 2 x 10¹
D. 2 x 10^-4

Question 163:

• JAMB 1979

(3.2)² - (1.8)² equals

A. 7.0
B. 2.56
C. 13.48
D. 2.0
E. 0.07

Question 164:

• JAMB 1979

After getting a rise of 15%, a man's new monthly salary is N345. How much per month did he earn before the increase?

A. N330
B. N396.75
C. N300
D. N293.25
E. N360

Question 165:

• JAMB 1979

In base ten, the number 101101 (base 2) equals

A. 15
B. 4
C. 45
D. 32
E. 90