NUMBER AND NUMERATION - Jamb Mathematics Past Questions and Answers

Question 556:

• JAMB 2015

The amount A to which a principal P amounts at r% compound interest for n years is given by the formula A = P(1 + (r ÷ 100)\(^n\). Find A, if P = 126, r = 4 and n = 2.

A. N132.50K
B. N136.30K
C. N125.40K
D. N257.42K

Question 557:

• JAMB 2015

If log₅20 = x, find x

A. 1.761
B. 1.354
C. 1.861
D. 2.549

Question 558:

• JAMB 2015

Find at which rate per annum simple interest N525 will amount to N588 in 3 years.

A. 3%
B. 2%
C. 5%
D. 4%

Question 559:

• JAMB 2015

Given that A = {1, 5, 7}
B = {3, 9, 12, 15}
C = {2, 4, 6, 8}
Find (A ∪ B) ∪ C

A. {1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 15}
B. {1, 2, 3, 5, 6, 8, 12, 15}
C. {2, 4, 5, 9, 12, 15}
D. {1, 5, 6, 7, 8, 9, 12, 15}

Question 560:

• JAMB 2015

Find the simple interest on N325 in 5years at 3% per annum.

A. N48.75K
B. N50.10K
C. N75.50K
D. N15.75K