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Important Civilization in Rajasthan
15 Questions 15 Marks 10 Mins
Given:
Rate (R) = 20%
Formula used:
S.I. = (P × R × T)/100
Where, S.I. → Simple Interest
P → Principal
R → Rate
T → Time
Calculations:
Let the sum of money be Rs. P.
So, A = 3P
And S.I. = A - P = 3P – P = 2P
Thus T = (100 × S.I.)/(P × R)
⇒ T = (100 × 2P)/(P × 20) = 10 years
∴ The required time is 10 years.
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Last updated on Sep 22, 2022
The RSMSSB Forest Guard & Forester exam will take place in the month of November 2022.The exam for Forester will be conducted on 6th November 2022 and the exam for Forest Guard will be conducted on 12th & 13th November 2022 The selection process consists of 5 stages i.e. Written Test, Physical Standard & Efficiency Test (PST & PET), Interview, Medical Examination, and finally Document & Character Verification. The candidates must go through the RSMSSB Forest Guard Previous Years’ Paper to know about the pattern of questions asked in the exam and streamline their preparation accordingly.
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Number of years in which a sum of money triples itself when the rate of interest being 5% is
- 20
- 30
- 10
- 40
Answer (Detailed Solution Below)
Option 4 : 40
Free
100 Questions 100 Marks 120 Mins
Given:
The sum of money triples itself.
Rate of interest = 5%
Concept used:
Simple interest = PRT/100
Amount = SI + P
P → principal R → rate of interest T → time
Calculation:
Amount = 3P
Simple interest = 3P - P = 2P
2P = P × 5 × T/100
T = 200/5 = 40 years
∴ The number of years by which a sum will triple itself at 5% p.a is 40 years.
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Last updated on Sep 22, 2022
The Uttar Pradesh Subordinate Services Selection Commission, on 7th September 2022 had released the final answer key of the UP Lekhpal mains exam for advt no 01/2022. The UP Lekhpal Exam was conducted on 31st July 2022. The candidates can calculate their scores using the final answer key and the marking scheme of the exam. It is expected that the board will soon release the merit list. This cycle is ongoing for 8085 vacancies where candidates between the age of 21 to 40 years were eligible to apply. Know the UP Lekhpal Answer key details here.
Ace your Interest preparations for Simple Interest with us and master Quantitative Aptitude for your exams. Learn today!
Let the sum of money be x
Amount = 3 × Rs x
= Rs 3x
Interest = Amount – Principal
= Rs 3x – Rs x
= Rs 2x
Rate =13 \frac{1}{3} \% \text { p.a. }
= 40 / 3 % p.a.
Time (T) = (I × 100) / (P × R)
= (2x × 100) / x × (40 / 3) years
On further calculation, we get,
= (2 × 100 × 3) / 40 years
= (100 × 3) / 20 years
We get,
= 5 × 3 years
= 15 years
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