WASSCE mock exam

Core Mathematics — Quick Maths

8 questions to work through. Answer them here, or take the whole thing timed with an account.

1.

WASSCE mock · Core Mathematics

If \(23_{x} = 1111_{2}\), find the value of \(x\).
2.

WASSCE mock · Core Mathematics

If \(21_{x} = 111_{2}\), find the value of \(x\).
3.

WASSCE mock · Core Mathematics

If \(41_{x} = 10101_{2}\), find the value of \(x\).
4.

WASSCE mock · Core Mathematics

Which of the following equals \(101101_{2}\) when expressed in base 8?
5.

WASSCE mock · Core Mathematics

What is the decimal value of \(7B_{16}\)?
6.

WASSCE mock · Core Mathematics

If \(23_{x}=43_{10}\), find the value of \(x\).
7.

WASSCE mock · Core Mathematics

If \(34_{x}=2A_{12}\) (where \(A_{12}=10_{10}\)), find \(x\).
8.

WASSCE mock · Core Mathematics

A die is rolled once. Find the probability of obtaining a number less than \(3\).

More Core Mathematics