How long will a sum of rs 5000 take to amount to rs 8750 at rate of 15./. per year​

sum of money(principal)=rs5000

amount=rs8750

rate=15%

to find interest use forrmula,

amount=principal+interest

rs8750=rs5000+interest

rs8750-rs5000=interest

rs3750=interest

to find time use formula,

interest=p*t*r/100

rs3750=rs5000*t*15/100

rs3750*100=rs75000*t

rs375000/rs75000=t

5=t

Step-by-step explanation:

therefore the sum of money rs5000 amount to rs8750 at the rate of 15% after 5 years

b. 54

Step-by-step explanation:

45 is original perimeter for ABC. You subtract 16 and 9 from 45 to get the missing side B which is 20. To answer the the perimeter for triangle CRB you add 20 to the other sides which is 15 and 19. The total is 54.