Simultaneous equations - Jamb Mathematics Past Questions and Answers

Question 6:

• JAMB 2015

The sum of two numbers is 5; their product is 14. Find the numbers.

A. X = 5 or 1
B. X = 7 or 1
C. X = 7 or 0
D. X = 7 or − 2

Question 7:

• JAMB 1978

Five years ago, a father was 3 times as old as his son, now their combined ages amount to 110years. thus, the present age of the father is

A. 75 years
B. 60 years
C. 98 years
D. 80 years
E. 105 years

Question 8:

• JAMB 1978

The set of value of x and y which satisfies the equations x² - y - 1 = 0 and y - 2x + 2 = 0 is

A. 1, 0
B. 1, 1
C. 2, 2
D. 0, 2
E. 1, 2

Question 9:

• JAMB 1978

Add the same number to the numerator and denominator of \(\frac{3}{18}\). If the resulting fraction is \(\frac{1}{2}\), then the number added is

A. 13
B. 14
C. 15
D. 12
E. 11

Question 10:

• JAMB 1979

Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2

A. X = -8, y = 1
B. X = -2, y = 4
C. X = \(\frac{-34}{27}\), y = \(\frac{73}{27}\)
D. X = 7, y = -9