Jamb Mathematics Past Questions For Year 1999
Question 6
If 2\(_9\) x (Y3)\(_9\) = 3\(_5\) x (Y3)\(_5\), find the value of Y.
- A. 4
- B. 3
- C. 2
- D. 1
Question 7
Simplify \(\sqrt{\frac{(0.0023 \times 750)}{(0.00345 \times 1.25)}}\)
- A. 15
- B. 20
- C. 40
- D. 75
Question 8
If \(m*n = (\frac{m}{n} - \frac{n}{m}\)) for m, n belong to R, evaluate -3*4
- A. \(\frac{-25}{12}\)
- B. \(\frac{-7}{12}\)
- C. \(\frac{7}{12}\)
- D. \(\frac{25}{12}\)
Question 9
The sum of two numbers is twice their difference. If the difference of the numbers is P, find the larger of the two numbers
- A. p/2
- B. 3p/2
- C. 5p/2
- D. 3p
Question 10
A binary operation * is defined by a*b = ab+a+b for any real number a and b. if the identity element is zero, find the inverse of 2 under this operation.
- A. 2/3
- B. 1/2
- C. -1/2
- D. -2/3
