Question

plzzzzz help me out....... ​

Answer 1

$\huge \sf \underline{ \red{{{answer : }}}}$

$\huge{ \blue{6.25\%}}$

$\bf{ \underline{ \underline{proof : }}}$

$\sf{s.p \: = \: 12000}$

$\sf{let \: us \: find \: c.p \: at \: 25\% \: gain}$

$\bf{c.p = \frac{s.p \times 100}{(100 + gain\%)} }$

$\bf{ ⟹\frac{12000 \times 100}{100 + 25} }$

$\bf{ \red{⟹9600}}$

$\blue{ \boxed{\boxed{ \bf{cp \ \: : 9600}}}}$

$\sf{let \: us \: find \: c.p \: 25\% \: loss}$

$\bf{c.p = \frac{s.p \times 100}{(100 - loss\%)} }$

$\bf{ ⟹\frac{12000 \times 100}{100 - 25} }$

$\bf{⟹ \frac{1200000}{75} }$

$\bf{ \red{⟹160000 }}$

$\blue{ \boxed{\boxed{ \bf{cp \ \: : 16000}}}}$

$\sf \red{\boxed {{{{cp \: of \: both \: machines \ \: : }}}}}$

$\sf{⟹16000 + 9600}$

$\sf{⟹25600}$

$\sf \red{\boxed {{{{sp \: of \: both \: machines \ \: : }}}}}$

$\sf{⟹12000 + 12000}$

$\sf{⟹24000}$

$\sf \red{loss \: \ \: : \: s.p - \: c.p}$

$\sf{⟹25600 - 24000}$

$\sf{⟹1600}$

$\boxed {\bf \red{loss\% = \frac{loss \times 100}{c.p} }}$

$\sf{⟹ \frac{1600 \times 100}{25600} }$

$\sf⟹ \frac{160000}{25600}$

$\bf \red{⟹6.25\%}$

Answer 2

Answer:

6.25%

\bf{ \underline{ \underline{proof : }}}

proof:

$\sf{s.p \: = \: 12000}s.p=12000$

$\sf{let \: us \: find \: c.p \: at \: 25\% \: gain}letusfindc.pat25%gain$

$\bf{c.p = \frac{s.p \times 100}{(100 + gain\%)} }c.p= </p><p>(100+gain%)</p><p>s.p×100$

$\bf{ ⟹\frac{12000 \times 100}{100 + 25} }⟹ </p><p>100+25</p><p>12000×100$

$\bf{ \red{⟹9600}}⟹9600$

$\blue{ \boxed{\boxed{ \bf{cp \ \: : 9600}}}} </p><p>cp :9600$

$\sf{let \: us \: find \: c.p \: 25\% \: loss}letusfindc.p25%loss$

$\bf{c.p = \frac{s.p \times 100}{(100 - loss\%)} }c.p= </p><p>(100−loss%)</p><p>s.p×100$

$\bf{ ⟹\frac{12000 \times 100}{100 - 25} }⟹ </p><p>100−25</p><p>12000×100$

$\bf{⟹ \frac{1200000}{75} }⟹ </p><p>75</p><p>1200000$

$\bf{ \red{⟹160000 }}⟹160000$

$\blue{ \boxed{\boxed{ \bf{cp \ \: : 16000}}}} </p><p>cp :16000$

$\sf \red{\boxed {{{{cp \: of \: both \: machines \ \: : }}}}} </p><p>cpofbothmachines :$

$\sf{⟹16000 + 9600}⟹16000+9600$

$\sf{⟹25600}⟹25600$

$\sf \red{\boxed {{{{sp \: of \: both \: machines \ \: : }}}}} </p><p>spofbothmachines :$

$\sf{⟹12000 + 12000}⟹12000+12000$

$\sf{⟹24000}⟹24000$

$\sf \red{loss \: \ \: : \: s.p - \: c.p}loss :s.p−c.p$

$\sf{⟹25600 - 24000}⟹25600−24000$

$\sf{⟹1600}⟹1600$

$\boxed {\bf \red{loss\% = \frac{loss \times 100}{c.p} }} </p><p>loss%= </p><p>c.p</p><p>loss×100$

$\sf{⟹ \frac{1600 \times 100}{25600} }⟹ </p><p>25600</p><p>1600×100$

$\sf⟹ \frac{160000}{25600}⟹ </p><p>25600</p><p>160000$

$\bf \red{⟹6.25\%}⟹6.25%$