Question

find the CP if sp is 420which is 120% of cp​

Answer 1

let co be X

120%of X=420

1%of X=420/120

1%of X=7/2

100%of X=7/2*100

=350

there co =rs350

Answer 2

In context to question asked,

We have to determine the value of CP

As per question,

We have,

SP = 420

As SP is 120% of CP

So, we can write the above statement as,

$SP = 120\%\:of\:CP$

So, for removing the percentage sign we will divide the number by 100

Thus we will get,

$SP = \frac{120}{100}\times CP\\=>420 = \frac{120}{100}\times CP\\=>CP = \frac{420 \times 100}{120}\\=>CP = Rs.\:350$

Hence, CP of the item will be Rs. 350