Daily Practice · Higher
March 1980 5-a-day
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The batch download puts all 5 tiers' March 1980 sheets in a single PDF, each tier behind its own divider page - 155 sheets in one file.
Every sheet in March 1980
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st March 1980y is directly proportional to x^2. When x = 5, y = 75. Work out y when x = 9.
- 2nd March 1980The point (-4, 6) is enlarged by scale factor -2 about the centre (-4, 0). Write down the coordinates of the image.
- 3rd March 19802 of 6 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4th March 198060 voles are marked and released. Later 24 are caught, of which 4 are marked. Estimate the population.
- 5th March 1980Write the recurring decimal 0.777... as a fraction in its simplest form.
- 6th March 1980Factorise x^2 + 16x + 63.
- 7th March 1980y is directly proportional to x. When x = 7, y = 63. Work out y when x = 15.
- 8th March 1980Two similar solids have lengths in the ratio 1 : 2. The larger has a volume of 72 cm^3. Work out the volume of the smaller.
- 9th March 198017 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 10th March 1980A cumulative frequency graph is drawn for 72 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 11th March 1980Work out 216^(2/3).
- 12th March 1980Work out the equation of the line parallel to y = x + 3 that passes through (6, 11).
- 13th March 1980A town's population is 31500 and grows by 4% each year. Work out the population after 6 years, to the nearest whole number.
- 14th March 1980A right-angled triangle has a hypotenuse of 15 cm and one shorter side of 12 cm. Work out the other shorter side.
- 15th March 19802 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 16th March 1980A box plot has a minimum of 7 and a maximum of 46. Work out the range.
- 17th March 1980Write sqrt(98) in the form a sqrt(b), where b is as small as possible.
- 18th March 1980A line has equation y = 2x + 5. Work out the gradient of any line perpendicular to it.
- 19th March 1980A block has volume 35 cm^3 and density 4 g/cm^3. Work out its mass.
- 20th March 1980ABCD is a cyclic quadrilateral. Angle ABC is 97°. Work out angle ADC.
- 21st March 198015 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 22nd March 1980A box plot has minimum 8, lower quartile 12, median 18, upper quartile 27 and maximum 32. Work out the interquartile range.
- 23rd March 1980A meal deal has 6 mains, 6 sides and 6 drinks. How many different meals are possible?
- 24th March 1980For the curve y = -15/x, work out y when x = -5, and write down the equation of its vertical asymptote.
- 25th March 1980x : y = 5 : 6. Write y in terms of x.
- 26th March 1980A, B and C are points on a circle with centre O. Angle AOC is 150°. Work out angle ABC, where B is on the major arc.
- 27th March 19805 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 28th March 1980A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
- 29th March 1980A mass is 23.7 kg, correct to 1 decimal place. Write down the lower bound.
- 30th March 1980Expand and simplify (x + 4)(x - 4)(x + 3).
- 31st March 1980A price rises by 25% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.