Daily Practice · Foundation Plus

Daily Practice - Foundation Plus

Grades 4-6 - the Foundation / Higher crossover zone.

26th July 2008

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

1
Ratio2 marks
Red and blue raffle tickets are in the ratio 3 : 4. There are 39 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (7, -7) and b is (-6, -7). Work out a + b as a column vector.
3
Probability Trees3 marks
3 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
130 people were surveyed. 90 were adults, of whom 45 said yes. 15 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 25 when truncated to the nearest whole number. Write down the error interval for y.

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