Daily Practice · Higher

Daily Practice - Higher

29th July 1996

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

1
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
2
SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 15 cm and an angle of 20°. Work out the side opposite that angle, to 1 decimal place.
3
Probability Trees3 marks
1 of 5 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 240 values. What cumulative frequency do you read across from to estimate the lower quartile?
5
Fractional and Negative Indices3 marks
Work out 27^(2/3).

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