Find the largest \( 8 \)-digit number which is divisible by \( 2, 3 \) and \( 4 \).

Select all TRUE sentences. Do not use your calculator.

Find the square root of \( 160 \ 000 \).

The angles of a quadrilateral are in the ratio \( 2:3:4:6 \).

Find the difference in magnitude between the smallest and largest angles.

Ben drove from Town A to Town B, a distance of \( 60 \) km, at an average speed of \( 80 \) km/h. He cycled back at an average speed of \( 20 \) km/h. Find his average speed for the whole journey.
Note that it is not \( \textit{50} \) km/h.

A clock strikes at regular intervals. It strikes the number of hours on the hour, twice for every half hour and once for each of the remaining 10-munites.
Find how many times the clock strikes in a 24-hour period.

Find the Highest Common Factor of \( 45, 72 \) and \( 108 \).

Find the sum of the prime factors of \( 4095 \).

Evaluate \( -7 + -7 \div -7 \times -7 — 7 \) without using a calculator.

Find a prime number greater than \( 10 \) where the sum of the digits equals \( 11 \).