Question

A sum of money amounts to rs52,080 in 2 years and to rs77,280 in 7 years, at simple intrest. Find the sum and rate percentage of interest.


NOT SPAM.

Answer 1

Answer:

A sum of money amounts to rs52,080 in 2 years and to rs77,280 in 7 years, at simple intrest. Find the sum and rate percentage of interest.

NOT SPAM.

Step-by-step explanation:

$\small{\color{red}{\fbox{\textsf{\textbf{@ItzUrCrush HeRe :-}}}}}$

Answer 2

hello uwu

A sum of money amounts to rs52,080 in 2 years and to rs77,280 in 7 years, at simple intrest. Find the sum and rate percentage of interest.

• P (1 + 2r / 100) = 52080

• pr = 50 (52080-p)

• p (1 + 7r / 100) = 77280

• pr = 100 (77280-p) / 7

• 50 (52080-p) = 100 (77280-p) / 7  
• p = 42000.

________________________________________

42000 (1 + 2r / 100) = 52080

⇒ r = 12%

I hope I've helped :3