was the Perfect Day for Amarjit in
- the birthday; the Maths Prize, the National
the Schools Conference in Barbados
But what about this Monday?
TheYear 9 Nightmare:
MegaBite Revision Challenge
Solve each of the 10
challenges in Amarjit's Nightmare
If you prefer, you can tackle the shortened version
at the end of each question.
can Ask an Expert
Q1. 8:00am -
Amarjit likes his Choco-Weeto-Fix Flakes for
breakfast. His dad has carefully emptied the family's favourite
cereal packets into 12 identical storage boxes.
of them have Choco-Weeto-Fix Flakes.
Sleepy Amarjit picks one without
|What is the probability that he chooses
his favourite cereal?
OR: What is the probability of
choosing (at random) a red counter from a bag of 12 counters (5
red and 7 blue)?
(from the SatsMuncher 2 Challenge)
Q2. 8:45am FROM BARBADOS TO
Registration time again in 9DS. Mr. Sani
cheerfully informs Amarjit that the Annual Schools
Conference (he was chosen for last week) has been changed: from
sunny Barbados to suburban Birmingham.
has 10 days to raise the £27 conference fee. Is
A. £0.27 per
B. £2.70 per day?
C. £2.07 per
OR: What is 27 divided by
(from the SatsMuncher 5
9:00am - THE PRIZE
Time for Year 9 assembly.
Pupils are asked to vote for Amarjit or Leah as Tuck Shop Officer -
a highly prized role for hungry Year
The chart shows the
About what percentage said
they voted for
OR : What percentage of this pie
chart represents Amarjit?
(from the SatsMuncher 8
Q4. 9:30am - THE MINI-GYM TIME
PE - and Amarjit's favourite lesson, since becoming the school's star
gymnast for the 2006 national championships.
He wanders off to his personal mini-gym
Disaster! - he has to share with the School Gym
Now he only gets 20% of the 180 hours access
to the gym
... and personal shower, sauna and vending
How much time does Amarjit
OR: What is 20% of
(from the SatsMuncher 3
11:00am: SCHOOL ELECTION CHEATING?
gripping vote for Amarjit as School Captain has been rejected due to new
evidence of cheating. Amarjit denies voting for himself 100
times. He gets 6 hours detention
Teacher puts the other 25 candidates' names in a box. He takes one
out at random. 16 of the candidates are
What is the
probability of choosing a boy?
OR: If 16 out out 25 pupils are
girls, what is the probability of choosing a boy at random?
(from the SatsMuncher 2
12:45 - LUCKY LUNCH-TIME?
Despite the nightmare morning, Amarjit's hungry.
Unfortunately, he spills some baked beans onto the floor, slips and goes
flying across the canteen into the Head Teacher's mushroom
As a punishment, Amarjit has to clean the canteen
||The Head says he can stop WHEN
he's mopped EXACTLY NINE TENTHS of the
OR: What is nine tenths as a
(from the SatsMuncher 3
1:45pm - DESIGN
lesson is D & T. Last week, Amarjit won Best
Year 9 Modern Times Design for his CD tower. Everyone built a
tower using his scale
week, everyone's towers have
Because he wrote 7 cm instread of 6.5 cm on his scale drawing. And
he used the wrong scale. Amarjit is not popular
cm stands for 10 cm, what
length should the pupils have
OR: If 1
cm represents 10 m, what real distance does 6.5 cm
(from the SatsMuncher 7
Q8. 3:15pm: DISMAL
the end of the school day. It's detention time. No Computer
Club. No Penalty Shootout. Amarjit is not
detention task: to arrange all 24 desks in each maths
classrooms into 4 perfect rows of
decides to do all the rectangles possible - except for the 4
x 6. How many different arrangements are
(Shall we agree that 4 x 6 and 6 x 4 are the
same to avoid confusion?)
OR: 24 squares can be arranged into a
rectangle that is 3 x 8 (or 8 x 3. How many other
rectangles can be made?
(from the SatsMuncher 4
HOW LONG IS A PIECE OF STRING?
Baritone, the Head of Maths, is furious about the classroom
desks. She gives Amarjit one last chance with a maths
challenge. If he gets it right, he can cancel his
' If I have
a piece of string 6 metres long and I cut off one part, how much is
Amarjit attended every lesson on algebra. He calls one
unknown length 'y' and writes down a correct algebraic solution
for the other.
solution did he submit:
A. 6 -
y cm ?
B. y - 6 cm ?
C. 6 + y cm ?
D. 3 cm
OR: A piece of wood is 6 metres
long. One piece is y metres long. How long is the other
(from the SatsMuncher 6
Q10. CURTAINS FOR
Mr Simpson the Head Teacher sends for Amarjit. His
father is in the office. Is it a three day exclusion -
or one more chance?
Mr Simpson warns Amarjit that he has a probability of 80% of
being excluded. If this is true, what is the probability of NOT
(there's more than 1
the probability of winning a game is 80%, what is the probablility of
losing? Write answer as a fraction, decimal and a
(from the SatsMuncher 2
Was the MegaBite Challenge easier than
the KillerBite Challenge?
- Or a million times worse?
If you've been attending all your
Year 9 maths lessons, done all your homework and never been ill, then
you've probably scored 100%!
... click here to find out your score.