Past Questions And Answers
Irrigation projects are commonly found in area of
- A. Low and unreliable rainfall
- B. High surface fluctuations
- C. Low rate of evaporation
- D. High volume of rainfall
Copper metal dissolves in concentrated trioxonitrate (V) acid with the resultant evolution of
- A) CO2
- B) SO2
- C) NO2
- D) CO
A rent of 250,000 was paid by John to his landlord by cheque. The double entry in John’s books is ______.
- A) debit Rent account, credit Bank account
- B) debit Rent account, credit John
- C) debit Bank account, credit Rent account
- D) debit John
Islam as a monotheistic religion expects that every faithful follower should
- A. not tell lies
- B. serve Allah without associates
- D. praise the Prophets as enjoined by Allah
- D. perform salat
Carbohydrates are stored in the animal cell in the form of
- A. starch
- B. glycogen
- C. plastid
- D. maltose
The mean of 2, 5, (x + 2), 7 and 9 is 6. Find the median.
- A. 5.5
- B. 6.0
- C. 6.5
- D. 7.0
The table shows the marks scored by some candidates in an examination.
| Marks (%) | 0-9 | 10-19 | 20-29 | 30-39 | 40-49 | 50-59 | 60-69 | 70-79 | 80-89 | 90-99 |
| Frequency | 7 | 11 | 17 | 20 | 29 | 34 | 30 | 25 | 21 | 6 |
(a) Construct a cumulative frequency table for the distribution and draw a cumulative frequency curve.
(b) Use the curve to estimate, correct to one decimal place, the :
(i) Lowest mark for distinction if 5% of the candidates passed with distinction ; (ii) probability of selecting a candidate who scored at most 45%.
View Discussion (0)WAEC 2015 THEORYWhich of the following pH values is the best for the action of the enzymes - renin and pepsin in the stomach?
- A. pH2
- B. pH7
- C. pH8
- D. pH9
A swinging pendulum between the rest position and its maximum displacement possesses
- A. Kinetic energy only
- B. potential energy only
- C. gravitational energy only
- D. both kinetic and potential energy
Which of the following was not an excuse Moses gave when he was called to deliver the Israelites?
- A. The Israelites would not believe him
- B. He was slow to speak
- C. he was a murderer
- D. He doubted his own ability


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