Respuesta :
Answer:
430
Step-by-step explanation:
every year is 12 months
1 1/2 years is 18 months, and 18/6=3, so 3*10=30
30₹ extra, plus beginning 400₹, is 430₹.
hope this helps!
Answer:
$430 and 5%
Step-by-step explanation:
You borrowed from your best friend = $400
He said that you have to pay $10 for every six months as interest.
If you return it after one and a half years (18 months) that is 18 ÷ 6 = 3 times You must pay $10, 3 times that is 10 × 3 = $30 (Interest)
The total amount you must pay him is 400 + 30 = $430 after one and a half years.
Now we calculate the rate of interest.
In 6 months you pay $10, so you pay $20 in one year.
We find out the percentage of interest of $20 on the money $400,
20 ÷ 400 × 100 = 5%
You must return him $430 and He is charging 5% annual rate of interest.
