Question

a sells a music system to b at a profit of 20% and b sell it to c at the profit of 5% .If c pays 1890 what did a pays for it​

Answer 1

Step-by-step explanation:

Let the C.P of A be 100.

Given that A sells a bicycle to B at 20%. Then the cost price of B = 100 + 20% of 100 = 120%.

Given that B sells a bicycle to C at 5%.Then the cost price of C = 120 + 5% of 120 =120 + 6 = 126.

Given The cost price of C = 3780

If 126 = 3780

1 = 3780/126

100 = (3780 * 100)/126

= 3000.

Cost price of A = 3000.

Hope this helps!

Answer 2

selling price of B =₹1890

he made a gain of 5%in it

of the cost price of B = 100/100+5*1890=₹1800

the selling price of A = the cost price of B

the cost price of A = 100/100+20*1800= ₹1500

so the cost price of A ₹1500(ANS)