Daily Practice

Foundation Plus

19th January 1989

5 questions · 13 marks · Grades 4-6 · 128 question types in this band

1
Best Buy Questions3 marks
A pack of 7 sponges costs £3.50. A pack of 28 costs £13.44. Which pack is better value?
2
Vectors2 marks
a is the column vector (1, -3) and b is (1, 2). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
120 people were surveyed. 90 were adults, of whom 45 said yes. 5 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 60 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 January 1989, including the monthly compilation PDF.