Postal or Sorting Assistants Model Paper 10 With Solutions

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Question : 21 of 100

Marks: +1, -0

How much time will it take for an amount of ₹ 450 to gain ₹81 as interest, if rate of interest is 4.5% p.a on simple interest?

4.5 years
3.5 years
5 years
4 years

Solution:

SI =

\text"P×R×T"/100

81 ={450×4.5×T}/100

T =

{100×81}/{450×4.5}=4

years

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