Question

ashima sold a watch for ₹1350 and suffered a loss of 10%. a)find the cp of the watch. b) find her gain% if she sells the watch for₹1800​

Answer 1

Step-by-step explanation:

sp=1350

l = 10%

cp=sp/(1-l%) = 1350 / (1-10%) = 1350/0.9 = 1500

cp=1500

sp = 1800

g%=sp-cp/ cp x 100

=1800-1500/1500 ×100

=300/1500 ×100=20%

Answer 2

Answer:

Step-by-step explanation:    (1) c.p of watch

loss = 10% of 1350

loss = 135 rupees

c.p of watch = s.p -  loss

c.p of watch =  1215 rupees

(2) gain % if she sells the watch for rupees

gain = 1800-1350 = 450

gain% = 25%