Daily Practice

Foundation Plus

15th August 1970

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

1
Ratio2 marks
Red and blue sweets are in the ratio 4 : 5. There are 36 red sweets. How many sweets are there altogether?
2
Vectors2 marks
a is the column vector (1, -1) and b is (8, 6). Work out a + b as a column vector.
3
Probability Trees3 marks
3 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
150 people were surveyed. 60 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 24 when truncated to the nearest whole number. Write down the error interval for y.

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