Question

5. A bank gives 10% interest on the deposits by the Ladies. Draw a graph showing the relation
between the amount deposited and the simple interest earned by the ladies and state
following from the graph.
(i) The annual interest earned for an investment of 250
(ii) The investment one has to make to get an annual interest of 3 70.
100 200
300
Sum deposited
(in 3)
500 1000
10
20
30
50
Simple interest
(in )
100​

Answer 1

Answer:

Step-by-step explanation:

Rs 700

Step-by-step explanation:

A bank gives 10% Simple Interest (S.I.) on deposits by senior citizens. Draw a graph to illustrate the relation between the sum deposited and simple interest earned. Find from your graph (a) the annual interest obtainable for an investment of Rs 250. (b) the investment one has to make to get an annual simple interest of Rs 70.

Simple interest = P * r * T / 100

P = Principle

r = rate of interest = 10% per annum

T = Investment Years

Simple interest=P*10* T/100 = PT/10

Simple interest for one years = P/10 Interest for 10 years = (P/10)*10 = P in 10 years interest = Principle P = Rs 250

Interest for one year = 250/10 = Rs 25

Interest = Rs 70

70 = P/10

=> P = 700

Rs 700 to be invested to get Simple annual interest of Rs 70