Daily Practice

Foundation Plus

28th May 1985

5 questions · 12 marks · Grades 4-6 · 128 question types in this band

1
Writing and Simplifying Ratio2 marks
Write the ratio 3 : 21 in the form 1 : n.
2
Vectors2 marks
a is the column vector (-7, -7) and b is (-8, -3). Work out a + b as a column vector.
3
Probability Trees3 marks
2 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture3 marks
50 beetles are marked and released. Later 56 are caught, of which 7 are marked. Estimate the population.
5
Error Intervals2 marks
A number y is 47 when truncated to the nearest whole number. Write down the error interval for y.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of May 1985, including the monthly compilation PDF.