Foundation Plus
23rd February 1980
- 1Forming and Solving Equations3 marks
The angles in a triangle are 3x°, 3x° and (x + 40)°. Form an equation and work out x.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 48. Work out y when x = 10.
- 3SOHCAHTOA (Trigonometry)3 marks
A right-angled triangle has a hypotenuse of 21 cm and an angle of 26°. Work out the side opposite that angle, to 1 decimal place.
- 4Probability Trees3 marks
A bag holds 6 red and 3 blue counters. Two are taken without replacement. Work out the probability both are red.
- 5Box Plots2 marks
A box plot has a minimum of 12 and a maximum of 67. Work out the range.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of February 1980, including the monthly compilation PDF.