Question

A certain number of articles are bought at 3 for Rs.150 and all of them are sold at 4 for Rs.180. Find the loss or gain as percent.​

Answer 1

Answer:

LCM of 3 and 4=12

Consider that 12 articles are bought

So the C.P of 12 articles =(150×12)/3=₹600

S.P of 12 articles =(180×12)/4=₹540

Loss =C.P–S.P

Substituting the values

=600–540

=₹60

Loss percent =(loss×100)/C.P

Substituting the values

=(60×100)/600

=10%

Step-by-step explanation:

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Answer 2

We know that

LCM of 3 and 4=12

Consider that 12 articles are bought

So the C.P of 12 articles =(150×12)/3=₹600

S.P of 12 articles =(180×12)/4=₹540

Loss =C.P–S.P

Substituting the values

=600–540

=₹60

Loss percent =(loss×100)/C.P

Substituting the values

=(60×100)/600

=10%

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