Maths revision
JMCtestQuestions
Question1
How
many
minutesis itfrom2335todayto0115tomorrow
100 110 120 130 140
MrRowlesway
2515 60100
815 8 0.4
v0.2by10
40.5by10
Question
whichoftheseisequalto0.140.20.3 0.4 5
0.01 0.02 0.04 0.1 0.4
Answer
wehave 0.1 0.2 10.3 0.6
andtherefore 0.1 0.2 0.3 0.4 0.6 0.4 0.2
itfollowsthat 1 0.2 0.3 0.410.5 0.2 0.5
Now 0.2 0.5 87 3 0.4
therefore 10.10.20.3 0.4 0.4 5 0.4
Question3
Samhaseatenthreequartersof thegrapes
whatistheratio ofthememberofgrapes thatremaintothenumberSamhaseaten
I3 1 4 1 5 1 G i 7
Answer
1 3
When Sam haseaten3 4 ofthegrapes ty ofthegrapes are leftthereforetheratioofthenumberofgrapeslefttothenumberSamhaseatenist Thisis thesoreas
I3
Question4
whichof thefollowingfine shapescanbe cutintofourpiecesby a
singlestraight cut
Answer
Question 5
on Aoife's 16birthdayBusterwasthree times herage
OnAoife's21 howoldwasBuster
32 48 53 63 64
Answer
WhenAoife'sagewas16Buster's
agewas 3 16 48ThereforeBusteris48 16 32
years older
it followsthatwhen Aoife was21Buster'sagewas21132553
Question 6
which oftheseis closest to 1
7.09 6.918 7.17 6.7 7.085
Explanation
Theoptionthatisclosest to isthe one whosedifference
from 7 issmaller
than for any of theother options
we have 7 09 7 0.09
7 6.918 0.082
7 17 7 0.17
V6.70.3and
7 085 7 0.085
We see the smallest of these differences is0.082 Itfollowsthat
ofthe given numbers it is 6.918 thatisclosestto7