$latex \frac{ } { } &s=2 $
1.3;

Sale M1=48000*0.65=31200

Sale M2=32000*0.54=17280

∴ Total=31200+17280=48480

2. 3;

In 2006, unsold Sale M2

=60000*$latex \frac{(100-57) }{100 } &s=2 $=25800

In 2007,production M2=36000

&there; Ratio= $latex \frac{ 25800}{36000 } = \frac{ 43}{60} &s=2 $

3. 1;

2006 ⇒ $latex \frac{ 54-48} {48 } &s=2 $ *100=12.5%

2007⇒ $latex \frac{ 40-54} {54 } &s=2 $ *100=25.9%(fall)

2008⇒ $latex \frac{ 48-40} { 40} &s=2 $ *100=20%

2009⇒ $latex \frac{76-48 } {48 } &s=2 $ *100=58.33%

2010⇒ $latex \frac{51-76 } {76 } &s=2 $ *100=32.89%(fall)

5. 2;

In 2007, Sale M2=36000*$latex \frac{ 72} { 100} &s=2 $=25920

In 2008, Sale M2=54000*$latex \frac{62 } {100 } &s=2 $=33480

%rise= $latex \frac{33480-25920 } {25920 } &s=2 $ *100

=$latex \frac{756000 } {2520 } &s=2 $ =29.16=29%

5.2;

Total M1=(48*0.65+54*0.52+40*0.67+48*0.56+76*0.78+51*0.48)

=(31.2+28.08+26.8+26.88+59.28+24.48)thousand

=196.72 thousand=196720

6.3;

2005 ⇒ $latex \frac{16 *100} {56 } &s=2 $ =28.57%,

2006 ⇒ $latex \frac{ 24*100} {72 } &s=2 $ =33.33%(fall),

2007 ⇒ $latex \frac{12 *100} { 48} &s=2 $ =25%,

2008 ⇒ $latex \frac{ 20*100} { 60} &s=2 $ =33.33%,

2009 ⇒ $latex \frac{30*100 } {80 } &s=2 $ =37.5%

7. 5;

Sale2004 =64000*$latex \frac{ 55} {100 } &s=2 $ =35200

Sale2008 =70000*$latex \frac{ 65} {100 } &s=2 $ =45000

∴ Total=35200+45500=80700

8.3;

Sale2009 =55000*$latex \frac{ 80} {100 } &s=2 $ =44000

Sale2010 =84000*$latex \frac{ 75} {100 } &s=2 $ =63000

Required %

= *$latex \frac{ 63000-44000} {44000 } &s=2 $ *100=4318%

9.2;

A2006+2007=48*$latex \frac{80 } {100 } &s=2 $+60*$latex \frac{75 } { 100} &s=2 $

=38.4+45=83.4 thousand

B2006+2007=64*$latex \frac{ 55} {100 } &s=2 $+60*$latex \frac{55 } {100 } &s=2 $

=35.2+30=65.2 thousand

∴ Difference=83.4-65.2=18.2 thousand

=18200

10.4;

UnsoldA=80*$latex \frac{100-55} &s=2 $ = 36000

UnsoldB=70*$latex \frac{100-65} &s=2 $ = 24500

∴ Required%= $latex \frac{36-24.5}{24.5 } &s=2 $ = $latex \frac{1150}{24.5}

=46.938=47%