Which of the following is NOT a prime number?

Some foods contain flavour enhancers. These food additives:

A ballpoint pen mark can be removed using:

A business operates its petty cash on the imprest system. At the beginning of the month the petty cashier was given $20.00 out of which she spent $15.20. How much will she be reimbursed?

A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?

If U = {1, 2, 3, . . . 10 } and S = { 2, 4, 6, 8, 10 }, then S ' =

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

The width of a block of wood with rectangular cross-section is x cm. Its height is ²/₃ its width and its length is 4 times its height. What is its volume in cm³?

After a 5% discount, an article is sold for $475. The price before the discount was

Quantity of electricity in coulombs = current in amps multiplied by:

Most plant and animal cells contain:

Powders react faster than lumps because they have:

What is the BEST option available to persons who are qualified but cannot find a job?

A square has the same area as a rectangle with sides of length 4 centimetres and 25 centimetres. What is the length of the square?

Veins have valves because

In the eye, rays of light are focussed on the retina by being refracted at:

All the following software are examples of operating systems EXCEPT

Which one of the following statements about constructive interference is NOT true?

Which one of the following is correct. When we digest our food:

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

To conceal his true activities, the spy quickly ............ a plausible excuse for his presence there.