Question

Ball point pens were sold at a
loss of 20% o.f. If they had been
- Sold at ₹70 more there would
have been a gain of 10/3%find
the cost price.​

Answer 1

Answer:

say cp was 100 and sp 80

so loss is 20/cp

=20%

Step-by-step explanation:

Now if sp is 80+70=150

and gain is 10/3 % or 3.33%

this is like (3.33/100)

=(pro/cp)*100

or pro is 3.33 per 100cp and 103.33 sp

but for sp 150 we get

(150/103.33)*100 =cp

=1.4516*100

=145.16 CP Answer