Page 12 - ACE YR IGCSE A TOP APPR' TO MATHS

5 The price of a theme park ticket is $85 for adult and $55 for children below 12 years old.

(a) Calculate the amount received when 11809 of adult tickets and 8532 of children tickets were sold.

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(b) Write your answer in part (a) in standard form.

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[2]
6 A clock is always behind by 4.5 minutes every hour. Calculate the number of seconds the clock becomes
slower in a year, and write your answer in standard form.

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7 A sheet of paper is 1.085 × 10 cm thick. Find the total thickness of 80000 of these papers. Give your
–3
answer in standard form.

[2]

Recurring decimals

Write the recurring decimal as a fraction in its simplest form.
1 0.26

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2 0.34

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Chapter 1A Numbers 7

Chapter 1A.indd 7 15/03/2022 10:26 AM