FREE UPDATES: ADS

AD: ADS

ONLINE CAFE: ADS

In a class, 37 students take a least one of chemistry, Economics and Government, 8 students take Chemistry, 19 take Economics and 25 take Government, 12 students take Economics and Government but nobody takes Chemistry and Economics. How many students take both chemistry and Government?

- A. 3
- B. 4
- C. 5
- D. 6

A cyclist rode for 30minutes at xkm/hr and due to a breakdown, he had to push the bike for 2hrs at (x – 5) km/hr. if the total distance covered is less than 60km, what is the range of values for x?

- A. x<14
- B. x<29
- C. x<28
- D. x<20

Evaluate x in base 3 if 41x-22x=17x.

- A. 11
- B. 8
- C. 12
- D. 22

Differentiate sin (2x-5) with respect to x.

- A. cos (2x-5)
- B. –cos (2x-5)
- C. 2cos (2x-5)
- D. -2cos (2x-5)

Z is partly constant and partly varies inversely as the square of d. when d = 1, z = 11 and when d = 2, z = 5. Find the value of z when d = 4.

- A. 2
- B. 3.5
- C. 5
- D. 5.5

If x= 0.0012 + 0.00074 + 0.003174, what is the difference between x to 2 decimal places and x to 1 significant figure?

- A. 0.01
- B. 0.0051
- C. 0.1
- D. 0.005

A man kept 6 black, 5 brown and 7 purple shirts in a drawer. What is the probability of his picking a purple shirt with his eyes close

- A. 1/7
- B. 7/18
- C. 11/18
- D. 7/11

An (n-2)2 sided figure has n diagonal, find the number n of diagonal for a 25 sided Figure

- A. 8
- B. 7
- C. 6
- D. 10

Expand the expression (x2-2x-3)(x2+x+1).

- A. x4-4x2-5x-3
- B. –x3-4x2+5x-3
- C. x4-x3-4x2-5x-3
- D. x4-4x2-5x -3

All the 120 pupils in a school learn Yoruba or Igbo or both. Given that 75 learn Yoruba and 60 learn Igbo. 13. How many learn both languages?

- A. 60
- B. 45
- C. 15
- D. 120