Question

Shine sold two tables at 9900 rupees each he got 10%profit in one sale and 10% loss in other. Did the total sale result in a profit or loss? What percentage​

Answer 1

Step-by-step explanation:

let cp of table 1 be cp1, table 2 be cp2

sp1 = sp2 = 9900

10% profit on table1 :

sp1 = cp1(1+10%) = cp1(1+0.1)

9900 = 1.1 cp1

cp1 = 9900/1.1 = 9000

10% loss on table 2:

sp2 = cp2(1-10%) = cp2(1-0.1)

9900 = 0.9cp2

cp2 = 9900/0.9 = 11000

total cp = cp1+cp2 = 9000+11000 = 20000

total sp = sp1+sp2 = 2× 9900 = 19800

loss% = cp-sp/ cp ×100

= 20000 - 19800/20000 ×100

=200×100/20000

=1%

loss 1%