Daily Practice

Higher

9th February 1985

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 16. Work out y when x = 7.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 18 cm and 12 cm with an angle of 118° between them. Work out its area, to 1 decimal place.
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
Box Plots2 marks
A box plot has minimum 12, lower quartile 22, median 29, upper quartile 36 and maximum 45. Work out the interquartile range.
5
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7676... as a fraction in its simplest form.

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