Question

A sum triples itself in 8 years at simple interest. Find the rate of interest per annum is.

A 25% Correct Answer Incorrect Answer
B 20% Correct Answer Incorrect Answer
C 35% Correct Answer Incorrect Answer
D 33.33% Correct Answer Incorrect Answer

Solution

Short trick – R= [(n-1)/t] ×100  8years    = 3 times = 3-1=2 Then rate of interest = (2/8) ×100 =25%

Practice Next

Relevant for Exams:

×
×