Daily Practice

Foundation Plus

31st January 1980

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

1
Best Buy Questions3 marks
A pack of 8 teabags costs £2.80. A pack of 16 costs £4.64. Which pack is better value?
2
Vectors2 marks
a is the column vector (0, -6) and b is (-7, -8). Work out a + b as a column vector.
3
Probability Trees3 marks
5 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Two Way Tables3 marks
Of 59 students, 19 study French, 24 study German and 4 study both. How many study neither?
5
Error Intervals2 marks
A number y is 81 when truncated to the nearest whole number. Write down the error interval for y.

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