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Rambalaji

· started a discussion

· 1 Months ago

Why we are taking cube root for 216 and 125 (Question:249209.0)

Please explain

Question:
A’s salary is  \(\cfrac{91}{125}\) times more than the salary of B. B spends his salary at 10% per annum. At what rate should A spend his salary so that after 3 years they are left with the same amount while they spend on compound interest basis? 
Options:
A) 20%
B) 25%
C) \(33\cfrac{1}{3}\%\)
D) \(33\cfrac{1}{2}\%\)
Solution:
Ans: (b)


Akash

· commented

· 1 Months ago

bcoz the given time period is 3 years
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