Number And Algebra - Chapter 7 Applying Ratios And Rates - Nelson Think Math Page 27
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32Chapter
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8 9 10 11 12
Applying ratios and rates
Problem solving
10
Here is a site plan of a house on a suburban block of ground.
BOUNDARY
Lot no. 164
Scale 1 : 200
Laundry path
House
Front
path
Pool
Carport
Driveway
BOUNDARY
a
What are the frontage and the depth of the block on the drawing?
b
What are the real frontage and depth of the block?
c
What are the width and the length of the carport on the drawing?
d
What are the real width and length of the carport?
e
What is the real width of the driveway?
f
What are the real length and width of the laundry path?
g
What are the real length and width of the house (excluding the carport)?
h
What is the real width of the front path?
11
This is a detailed drawing of the peg on a doll’s body that the leg fits onto.
Head
‘Peg’
for snap-on
Collar
swivel leg
Scale 5 : 1
Base
Body of doll
a
What is the length (mm) of the drawing of the peg base?
b
What is the real length of the peg base?
c
What is the real length of the collar?
d
What is the real length of the top of the peg head?
e
How much does the peg stick out from the doll’s body?
f
How much narrower is the collar than the base?
264
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