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Set 3 Paper 3h Worked Solutions

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  • GCSE Mathematics Practice Tests: Set Practice test paper 3H (Set 6): Version 1.0 2 Answer ALL...

GCSE Mathematics Practice Tests: Set Practice test paper 3H (Set 6): Version 1.0 2 Answer ALL questions

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Text of GCSE Mathematics Practice Tests: Set Practice test paper 3H (Set 6): Version 1.0 2 Answer ALL...

  • Practice Tests: Set 6 Regular (3H) – Version 1.0 This publication may only be reproduced in accordance with Pearson Education Limited copyright policy. ©2016 Pearson Education Limited.

    GCSE Mathematics Practice Tests: Set 6

    Paper 3H (Calculator) Time: 1 hour 30 minutes You should have: Ruler graduated in centimetres and millimetres, protractor, pair of compasses, pen, HB pencil, eraser, calculator. Tracing paper may be used.

    Instructions

    • Use black ink or ball-point pen. • Fill in the boxes at the top of this page with your name,

    centre number and candidate number. • Answer all questions. • Answer the questions in the spaces provided

    – there may be more space than you need. • Calculators may be used. • Diagrams are NOT accurately drawn, unless otherwise indicated. • You must show all your working out.

    Information

    • The total mark for this paper is 80 • The marks for each question are shown in brackets

    – use this as a guide as to how much time to spend on each question. Advice

    • Read each question carefully before you start to answer it. • Keep an eye on the time. • Try to answer every question. • Check your answers if you have time at the end.

  • Practice test paper 3H (Set 6): Version 1.0 2

    Answer ALL questions.

    Write your answers in the spaces provided.

    You must write down all the stages in your working.

    1. Here is a rectangle.

    The rectangle has been divided into two strips, A and B. The strips have the same width.

    5 2 of strip A is shaded.

    8 5 of strip B is shaded.

    The length of the rectangle is 40 cm. What fraction of the rectangle is not shaded?

    ..............................................

    (Total 4 marks) ___________________________________________________________________________

    2. Make w the subject of the formula P = 2 3−w

    .................................................................................

    (Total 2 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 3

    3.

    A, B and C are 3 service stations on a motorway. AB = 25 miles BC = 25 miles Aysha drives along the motorway from A to C. Aysha drives at an average speed of 50 mph from A to B. She drives at an average speed of 60 mph from B to C. Work out the difference in the time Aysha takes to drive from A to B and the time Aysha takes to drive from B to C. Give your answer in minutes.

    .............................................. minutes

    (Total 3 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 4

    4. Solve the simultaneous equations 4x + 3y = –7 3x – 4y = 26

    x =.......................................................

    y =.......................................................

    (Total 4 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 5

    5. Toby invested £4500 for 2 years in a savings account. He was paid 4% per annum compound interest. (a) How much did Toby have in his savings account after 2 years?

    £ .............................. (3)

    Jaspir invested £2400 for n years in a savings account. He was paid 7.5% per annum compound interest. At the end of the n years he had £3445.51 in the savings account. (b) Work out the value of n.

    ........................... (2)

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 6

    6. Here is a shape.

    BPC is a semicircle. BAC is a right-angled triangle. BC = 8 cm. AB = 5 cm. Work out the perimeter of the shape. Give your answer correct to 3 significant figures.

    .............................................................. cm

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 7

    7. The diagram shows a trapezium.

    All measurements on the diagram are in centimetres. The area of the trapezium is 119 cm2 (i) Show that 2x2 – x – 120 = 0 (ii) Find the value of x. Show your working clearly.

    x = .......................................................

    (Total 6 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 8

    8. Here is a number line.

    (a) Write down the inequality shown on the number line.

    ...................................................... (1)

    p is an integer. –5 < p ≤ –2 (b) Write down all the possible values of p.

    ...................................................... (2)

    (c) Solve 5y – 2 < 18

    ......................................................

    (2)

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 9

    9. There are 9 counters in a bag. There is a number on each counter.

    Kal takes at random 3 counters from the bag. He adds together the numbers on the 3 counters to get his Total. Work out the probability that his Total is 6.

    .......................................................

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 10

    10. The highest common factor (HCF) of 140 and x is 20. The lowest common multiple (LCM) of 140 and x is 420. Find the value of x.

    x = ........................................................

    (Total 2 marks) ___________________________________________________________________________

    11. A number is decreased by 15%. The result is 323 What was the original number?

    ...............................................................

    (Total 3 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 11

    12. Each student in a group of 32 students was asked the following question.

    "Do you have a desktop computer (D), a laptop (L) or a tablet (T )?" Their answers showed that 19 students have a desktop computer 17 students have a laptop 16 students have a tablet 9 students have both a desktop computer and a laptop 11 students have both a desktop computer and a tablet 7 students have both a laptop and a tablet 5 students have all three. (a) Using this information, complete the Venn diagram to show the number of students in

    each appropriate subset.

    (3)

    One of the students with both a desktop computer and a laptop is chosen at random. (b) Find the probability that this student also has a tablet.

    ........................................................ (1)

    (Total 4 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 12

    13. The function f is defined as

    6f ( ) 2 xx −=

    (a) Find f(8).

    ................................ (1)

    (b) Express the inverse function f–1 in the form f–1(x) = …

    f–1(x) = ................................ (2)

    The function g is defined as

    g( ) 4x x= − (c) Express the function gf in the form gf(x) = … Give your answer as simply as possible.

    gf(x) = ................................

    (2)

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 13

    14. The diagram shows a prism.

    Triangle PQR is a cross section of the prism. PR = 20 cm MP = 12 cm Angle PRQ = 30º Angle PQR = 90º Calculate the size of the angle that the line MR makes with the plane RQLN. Give your answer correct to 1 decimal place.

    ......................................................°

    (Total 5 marks) ___________________________________________________________________________

  • Practice test paper 3H (Set 6): Version 1.0 14

    15. A scientist is studying some rabbits. The rabbits have a disease that kills the rabbits. A population of 160 of these rabbits was reduced to 90 rabbits in two days. The rabbit population is decreasing exponentially. Work out how many of the 160 rabbits will still be alive at the end of 7 days.

    .......................

Set 3 Paper 3h Worked Solutions

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