Daily Practice

Higher Plus

15th April 1991

5 questions · 14 marks · Grades 8-9 · 51 question types in this band

1
Velocity Time Graphs2 marks
A train slows steadily from 14 m/s to rest in 8 seconds. Work out its deceleration.
2
Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = b and vector OB = m. X is the midpoint. Write vector OX in terms of b and m.
3
Probability Equation Questions3 marks
The probability of winning a game is 1/8. A player expects 8 wins. How many games did they play?
4
Histograms3 marks
On a histogram the bar for 20 < x <= 30 has a frequency density of 3.5. How many values are in that class?
5
Bounds3 marks
A block has mass 680 g (to the nearest 10 g) and volume 13 cm^3 (to the nearest cm^3). Work out the upper bound of its density, to 2 decimal places.

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