Question

Sagina deposited Rs 20000 at the rate of 8%p.a. in her saving account . After 2years , she withdrew rs 5000 and the total interest of 2years . How long should she keep the remaining amount to get total interest of rs 6800 from the beginning ?

Answer 1

Step-by-step explanation:

Root Maths Formulas

Square Root :

If x2 = y then we say that square root of y is x and we write √y = x

So, √4 = 2, √9 = 3, √36 = 6

Cube Root:

The cube root of a given number x is the number whose cube is x.

we can say the cube root of x by 3√x

√xy = √x * √y

√x/y = √x / √y = √x / √y x √y / √y = √xy / y.