Past Questions And Answers
Let (*) be a binary operation on a natural number defined by a * b = a - b + (ab)2, then find 3 * 5
- A. 223
- B. 232
- C. 32
- D. -232
The invisible part of the spectrum of a white light consists of the following colors
- A. Red, orange and yellow only
- B. Infra-red, ultraviolet and blue only
- C. Indigo and green only
- D. Ultra violet and infra-red only
An organic compound contains 69% carbon, 15.3% hydrogen and 30.7% oxygen. Calculate the the empirical formula [C=12, H = 1, O = 16]
- A. C\(_4\)H\(_12\)O
- B. C\(_3\)H\(_9\)O
- C. C\(_4\)H\(_9\)O
- D. C\(_3\)H\(_8\)O
The major role played by accessory pigments during photosynthesis is to?
- A. add colour to plants but not to trap light energy
- B. trap light energy that chlorophyll cannot absorb
- C. transfer energy from chlorophyll to other pigments
- D. prevent chlorophyll from absorbing unnecessary light
A receipt is an evidence of
- A. payments
- B. stocking
- C. delivery
- D. discounts
Which of the following controls a limited liability company?
- A. the general manager
- B. the managing director
- C. tax payers
- D. the board of directors
Use the QBASIC program below to answer question below
10 REM Program to calculate product of numbers
20 CLS
30 INPUT A
40 INPUT B
50 LET PRODUCT=A*B
60 PRINT PRODUCT
70 END
The QBASIC statement LETX=Y-3 means- A. the variables X and Y both receive the value 3
- B. the variable X receives the value 3.
- C. the variable X receives the value of Y less 3
- D. an error message has occured due to type mismatch
When the marginal utility of a commodity is zero the total utility is
- A. at its minimum
- B. upward-sloping
- C. downward-sloping
- D. at its maximum
The presentation of Sermon is an obligation on the Imam when leading
- A. all the prayers
- B. funeral prayers
- C. Friday prayers
- D. every prayer on Friday
The optimum temperature for storing yam tuber under cold storage is
- A. 7°C
- B. 9°C
- C. 13°C
- D. 15°C