Question

A mandeposited rs4200 in a bank at rate 8%(p.a.)and rs 1400 in post office at 6%(p.a.)find the rate of interest for the whole sum?

Answer 1

Answer:

S.I 1 - 386

S.I 2 - 84 , Total SI - 386+84 = 470

Step-by-step explanation:

S.I Unit (Bank)

S. I = P×R×T/100

= (4200×8×1)/100 (When Time is not given in question we Take time as 1 year)

= 386

•S.I Unit (Post office

S. I = P×R×T/100

(1400×6×1)/100

= 84

Therefore Adding 1 And 2 Will Give The Whole Sum of Both Interests.

386+84 = 470.

That Is Your Complete Answer

Please Mark Brwinliest If it helped.

Step-by-step explanation:

I give you answer now it is your duty to mark me as a brianliest please follow me on brainly