Jamb Mathematics 2011 Past Questions and Answers

Question 11:

• JAMB 2011

Make R the subject of the formula if T = \(\frac {KR^2 + M}{3}\)

A. \(\sqrt\frac{3T - K}{M}\)
B. \(\sqrt\frac{3T - M}{K}\)
C. \(\sqrt\frac{3T + K}{M}\)
D. \(\sqrt\frac{3T - K}{M}\)

Question 12:

• JAMB 2011

Find the remainder when X³ - 2X² + 3X - 3 is divided by X² + 1

A. 2X - 1
B. X + 3
C. 2X + 1
D. X - 3

Question 13:

• JAMB 2011

Factorize completely 9y² - 16X²

A. (3y - 2x)(3y + 4x)
B. (3y + 4x)(3y + 4x)
C. (3y + 2x)(3y - 4x)
D. (3y - 4x)(3y + 4x)

Question 14:

• JAMB 2011

Solve for x and y respectively in the simultaneous equations -2x - 5y = 3. x + 3y = 0

A. -3, -9
B. 9, -3
C. -9,3
D. 3, -9

Question 15:

• JAMB 2011

If x varies directly as square root of y and x = 81 when y = 9, Find x when y = 1\(\frac{7}{9}\)

A. 20\(\frac{1}{4}\)
B. 27
C. 2\(\frac{1}{4}\)
D. 36