How do i solve a question like:
After earning interest, the balance of an account is $420. The new balance is 7 over 6 of the original balance. How much interest was earned Show your working.

P.S I will give a medal for best answer :)

Question

How do i solve a question like:
After earning interest, the balance of an account is $420. The new balance is 7 over 6 of the original balance. How much interest was earned Show your working.

P.S I will give a medal for best answer :)

anonymous · Answer

i think most of us are here not for medals

anonymous · Answer

anyways regarding the answer, let x be the original amount 
as per the ques tion (7/6) x= 420
thus x=420*6/7=360
thus the interest earned is 420 -360=60

anonymous · Answer

(7/6)x=420

Find x to find the original balance and minus it from the current balance to find the interest earned.

anonymous · Answer

alternatively the interst is (1-6/7)*420 =1/7*420=60

anonymous · Answer

Thanks :)

anonymous · Answer

welcome ,
but i request not to ask questions satating donation of medals..