Daily Practice

Foundation Plus

11th June 1955

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 5 : 8. There are 55 red raffle tickets. How many raffle tickets are there altogether?
2
Vectors2 marks
a is the column vector (-5, 4) and b is (-4, 1). Work out a + b as a column vector.
3
Probability Trees3 marks
4 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Frequency Trees3 marks
240 people were surveyed. 30 were adults, of whom 15 said yes. 35 of the children said yes. How many said yes altogether?
5
Error Intervals2 marks
A number y is 12 when truncated to the nearest whole number. Write down the error interval for y.

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