Economics (GSDR2113)
Higher Institute of Transport and Logistics (HITL)
Semester: First Semester
Level: 200
Year: 2017
Emmanuel BEYiNA
Course:
Economics
Chapter 3
REPUBUQUE DU CAMEROUN REPUBLIC OF CAMEROON
PAJX-
TRAVAIL-PATRIE
PEACE-WORK- FATHERLAND
UNIVERSTTE DE BAMENDA THE UNIVERSITY OF BAMENDA
HITL/LEVEL 1/ Dr BEYINA
EXERCICES
Exercice 1: Either the picture below presenting the demand of the rice of the households of
the city of Bamenda according to the price .
Assigment:
Price
130 120 110 100
90
80
Quantity(demand) 750 800
900
1000 1200
1300
1- Present the curve of the demand
2- Calculate the price Elasticity of the demand in relation to the price when the price of
rice
passes from
120f to
l30f
Exercice
2
:
Either
the
picture
below
given
in
evidence
the
quantities of
rice
according
to
the
price
of
the
kilogram,
offered
by the
tradesmen
Assigment :
Price
80 90
100
110 120 130
Supply
700 I 800
, 1000
' 1100 1300 1400
1- Present the curve of the supply
2- Calculate the Elasticity of supply if the price changes from llOf to 120f per kilogram
and the quantity supplied increases from 1100 to 1300.
Exercice 3: The offer, the demand and the price of rice of the populations of the city of
Bamenda present themselves of the following manner consigned below in the picture:
Assigment:
Jupply
700 800
1000 1100
1300 1400
Demand 1300
1200
1000
900 800
750
Price
80
9O
100
130
1- Present the curves of demand and supply
2- Present an illustration of the third law of demand and supply
Exercice 4: If a change in the price of bread from 250f to 300f per loaf causes the quantity
demanded of the bread to fall from 1100 to 800 loaves, how can the Price Elasticity of
Demand be determined ?
110
120
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Emmanuel BEYINA
Cource: Economics
Chapter 3
Exercice 5 : Imagine that a change in the consumers income from 120000 to 80000 FCFA per
month causes the quantity demand for bread to drop from 600 to 520 loaves per week.
Determine the elasticity of demand for bread.
Exercice 6 : If the price of sugar changes from 500 FCFA to 650 FCFA per packet and the
quantity supplied increases from 950 to 1400 packets per week what is the elasticity of
supply ?
Exercice 7 : Looking at the picture below and considering the evolution of the prices and
sold quantities butter, meat and cheese during the years 2008-2009 and 2010-2011:
Assigment:
Products
Po : 2008-2009
Pl: 2010-2011
Price quantity Price quantity
Butter 900 1800
1350
1450
meat
800 3000
1040
1200
cheese
1200 600
1600 400
1- Calculate and interpreter the coefficient of springiness of the demand of each of
these commodities
2- Calculate the indication measuring the global evolution of the values of these
commodities
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