The average of a set of numbers reduces from 14 to 11 when the number 35 is removed. How many numbers were in the original set?

To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:

The decimal equivalent of ⁷/₈ is

The water authority charges $10.00 per month for the meter rent, $2.50 for the first 1 000 litres and $0.10 for each additional 100 litres. What is the total bill for 2 500 litres used in one month?

A rectangular tank is 50 cm long, 50 cm wide and 10 cm deep. The volume of liquid it will hold is

A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about the nucleus is NOT true?

The gas released by baking powder is:

Which of the following methods of fishing is MOST damaging to the eco-system?

The system used by mission control in Houston, Texas to monitor the operation of space exploration vehicles is an example of the __________ processing mode.

The highest authority of the Caribbean Community (CARICOM) is the

In a school of 910 pupils, ³/₇ are boys and ²/₅ of the boys wear glasses. How many boys wear glasses?

Which one of the following best describes hormones?

In electrolysis the anode is the:

Water is lost from the body in:

The correct pathway of water through a plant is:

Iron chloride can be prepared from the reaction of iron and:

Atherosclerosis is a process in which:

A machine costs $10,000. It has an expected life of six years and has a residual value Of $400. Using the straight-line method, what is the depreciation per annum?

Which of the following nutrients is/are digested in the stomach?