Question

a man selles an item for rs 500 and gains 10% if he sells the item in 2000 what will be the gain %​

Answer 1

Step-by-step explanation:

Name the gas released when metals reacts with acid. How will you identify the presence of this gas?

2 marks

Answer 2

Answer:

here,

sp=500

gain%=10%

let

cp be x.

sp=cp of 10%+ cp

500=cp×10/100+cp

500=x/10+×

500=11x/10

x=500×10/11

x=5000/11

so,

cp=454.5

then,

gain=sp-cp

=2000-454.5

=1545.5

gain%=gain/cp×100%

1545.5/454.5×100%

=answercoming