Question

e:7
Malik sells two tables for 3000 each. He gains 20% on one table and on the
other he loses 20%. Find his gain or loss percent on the whole transaction.​

Answer 1

Answer:

In first case;

c.p of two tables= rs 3000

profit he gets after selling two tables =20%

sol.

sp=cp×(100+gain or profit%)/100

=rs 3000(100+20%)/100

so after putting the value agar humlogo ko percent hatana hota hai toh us number ke niche 100 likh do to hat jata hai par is formula mai pehle se 100 hai so 20% la percent hatke 20 ho jayega.

so s. p is =rs 3600

profit =sp-cp

profit =rs 3600-rs 3000

so profit is rs 600

so profit%=profit/cp×100

profit %=rs 600/3000×100

profit %=20%

Again in second case

s.p =rs 3600

loss=20%

so ,cp=sp×100/(100-loss%)

cp =rs3600×100/(100-20%)

again the same reason for %sign given upwards

so c.p = rs 4500

loss=cp-sp

loss=rs 4500-rs 3600

loss=rs 900

loss%=loss/cp×100

loss%=900/3600×100

loss=25%

so in case 1 he gains 20% for selling two tables and in case 2 he loses 25% for selling two tables.

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