Question

a borrowed rs 6300 from b at 14% annum. He added some extra money to that sum and lent it to C at 16% per annum. If A got a profit of rs 618. Find the amount that given to C.​

Answer 1

Answer:

6724.14 Rs.

Step-by-step explanation:

A takes 6300 Rs from B at 14% interest.

So, after 1 year, A has to give back 6300[1+(14/100)]=7182 Rs. to B.

Now, assume that A added x Rs. to the 6300 Rs. and lent it to C at 16% interest.

Hence, after one year A will get beck (6300+x)[1+(16/100)].

A got a profit of 618 Rs. after one year.

Hence, (6300+x)[1+(16/100)]-7182=618

⇒(6300+x)(1.16)= 7800

⇒7308+1.16x=7800

⇒1.16x=492

⇒ x=424.14 Rs.

So, A has given (6300+424.14)= 6724.14 Rs  to C. (Answer)

Answer 2

Answer is 9375.Rs

A got profit 618rs

But actually profit is 16-14=2% of 6300

So 2/100*6300=126rs

618-126=492rs ( and this is profit ie SI of extra money that given to c)

P*16/100=492

P= 3075 (extra money)

Amount given to c is 3075+ 6300=9375