a man deposited Rs4200 in a bank at 8%and Rs 1400 in a Post office at 6%.find the rate interest for the whole sum.
Answers
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.
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Here is the solution:
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Find the interest from the deposit with the bank
interest = 16% of 4200 = 0.16 x 4200 = Rs 672
Find the interest from the deposit with the post office:
interest = 6% x 1400 =0.06 x 1400 = Rs 84
Find total interest:
Total interest = 672 + 84 = Rs 756
Answer: The total interest earned is Rs 756.