Question

A sum of 4700 is doubled in 6 yrs under simple interest at a certain rate of interest. what is the interest?????
PlZzz answer this quickly​

Answer 1

Answer:

plz mark ans as brainliest

Step-by-step explanation:

sum or principal = 4700

amount = 2p = 4700*2 = 9400

simple interest = amount - principal = 9400 - 4700 = 4700

time = 6 years

rate of interest = simple interest*100/principal*time

                          =   4700*100/4700*6

                         = 50/3 %

therefore  rate of interest = 50/3%

hope it helps

you

Answer 2

Answer:

so let the sum be p then p get double

so amount is 2p

as we know

• SI = amount - principal
• SI= 2p-p
• si = p then
• si = p ×t×r
• P= p×t×r
• p=p×6×r÷100
• R= 100÷6
• R= 50÷3%
• or R= 16.6