The current population of a town is 12,500. It increases by 52% and 30% in two successive years but decreases by 15% in the third year. What is the population of the town at the end of the third year?
The current population of a town is 12,500. It increases by 52% and 30% in two successive years but decreases by 15% in the third year. What is the population of the town at the end of the third year?
किसी कस्बे की वर्तमान जनसंख्या 12,500 है। यह दो क्रमिक वर्षों में 52% और 30% बढ़ जाती है, लेकिन तीसरे वर्ष में 15% घट जाती है। तीसरे वर्ष के अंत में कस्बे की जनसंख्या कितनी होगी?
Detailed Solution & Logic
20,995
Simple Trick:
Population = 12500
Apply successive changes together:
$ 12500 \times 1.52 \times 1.30 \times 0.85 $
$ = 12500 \times 1.52 = 19000 $
$ = 19000 \times 1.30 = 24700 $
$ = 24700 \times 0.85 = 20995 $
Answer: 20,995
Similar Practice Questions
X and Y started a business investing Rs. 60,000 and Rs. 90,000 respectively. After 5 months, X withdrew half his capital, and Y added Rs. 30,000 more.
X and Y started a business investing Rs. 60,000 and Rs. 90,000 respectively. After 5...
A number is first decreased by 15% and then increased by 20%. The number so obtained is 78 more than the original number. The original number is:
A number is first decreased by 15% and then increased by 20%. The number so...
In an examination, 19% of the students fail in Mathematics and 10% fail in English. If 7% of all students fail in both subjects, what percentage of students pass in both subjects?
In an examination, 19% of the students fail in Mathematics and 10% fail in English....
2% of 4% of a number is what percentage of that number?
2% of 4% of a number is what percentage of that number? किसी संख्या के...
The population of a district is 362000, out of which 181000 are males. 47% of the population is literate. If 35% males are literate, then what percentage of females are literate?
The population of a district is 362000, out of which 181000 are males. 47% of...
The difference 40% of a number and 25% of the same number is 75. What is 30% of the number?
The difference 40% of a number and 25% of the same number is 75. What...
If 2% of $ x $ = 348, then $ x $ is equal to :
If 2% of $ x $ = 348, then $ x $ is equal to...