Question

pls bta do me BRAINLIST mark kar dunga pura solve kar ke dena​

Answer 1

Answer:

R = 0.5%

Step-by-step explanation:

Principal = Deposit/Month ($\frac{n(n + 1)}{2}$)

               = 800 * $(\frac{30 (30 + 1)}{2})$

               = 400 * 30 * 31

               = ₹ 372000

Interest = $\frac{PTR}{100}$

             = $\frac{372000 * 1 * R}{100}$

             = 3720R

Maturity value = Principal + Interest

₹25860           = 800(30) + 3720R

25860             = 24000 + 3720R

3720R             = 25860 - 24000

3720R             = 1860

∴$R = \frac{1860}{3720}$

     = $\frac{1}{2}$

     = 0.5%