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Rishi salary is first increased by 20% and then decreased by 25%. How much percent the salary increased/decreased ?
- a)5%
- b)10%
- c)15%
- d)20%
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Rishi salary is first increased by 20% and then decreased by 25%. How ...
Answer – b) 10% Solution: Take 100 as rishi salary.
Increased by 20% percent = 120.
Then decreased by 25%, i.e = (75/100)*120 = 90.
So percentage decrease is 10%.
Increased by 20% percent = 120.
Then decreased by 25%, i.e = (75/100)*120 = 90.
So percentage decrease is 10%.
Most Upvoted Answer
Rishi salary is first increased by 20% and then decreased by 25%. How ...
Answer – b) 10% Solution: Take 100 as rishi salary.
Increased by 20% percent = 120.
Then decreased by 25%, i.e = (75/100)*120 = 90.
So percentage decrease is 10%.
Increased by 20% percent = 120.
Then decreased by 25%, i.e = (75/100)*120 = 90.
So percentage decrease is 10%.
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Community Answer
Rishi salary is first increased by 20% and then decreased by 25%. How ...
Solution:
Let the initial salary of Rishi be Rs. 100.
When the salary is increased by 20%, the new salary becomes:
= 100 + (20% of 100)
= 100 + 20
= Rs. 120
Now, when this new salary is decreased by 25%, the final salary becomes:
= 120 - (25% of 120)
= 120 - 30
= Rs. 90
Therefore, the salary has decreased by Rs. 10.
To find the percentage increase/decrease in the salary, we can use the formula:
Percentage increase/decrease = (Change in value / Initial value) x 100%
Here, the change in value is -10 (negative sign indicates a decrease) and the initial value is 100. So, we have:
Percentage decrease = (-10 / 100) x 100%
= -10%
= -1 x 10%
= -1/10 x 100%
= -10%
Therefore, the salary has decreased by 10%.
Hence, the correct answer is option (B) 10%.
Let the initial salary of Rishi be Rs. 100.
When the salary is increased by 20%, the new salary becomes:
= 100 + (20% of 100)
= 100 + 20
= Rs. 120
Now, when this new salary is decreased by 25%, the final salary becomes:
= 120 - (25% of 120)
= 120 - 30
= Rs. 90
Therefore, the salary has decreased by Rs. 10.
To find the percentage increase/decrease in the salary, we can use the formula:
Percentage increase/decrease = (Change in value / Initial value) x 100%
Here, the change in value is -10 (negative sign indicates a decrease) and the initial value is 100. So, we have:
Percentage decrease = (-10 / 100) x 100%
= -10%
= -1 x 10%
= -1/10 x 100%
= -10%
Therefore, the salary has decreased by 10%.
Hence, the correct answer is option (B) 10%.
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