Advertisements
Advertisements
प्रश्न
Three times a number is 200% increase in the number, then one-third of the same number is 200% decrease in the number.
पर्याय
True
False
Advertisements
उत्तर
This statement is False.
Explanation:
Let x be the number.
So, three times of x = 3x
Difference between 3x and x = 3x – x = 2x
∴ Difference between 3x and x = 3x – x = 2x
∴ Percentage increase in `x = (2x)/x xx 100 = 200%`
If one-third of `x = 1/3 x`
∴ Difference between `x` and `x/3 = x - x/3 = (2x)/3`
∴ Percentage decrease = `((2x)/3)/x xx 100`
= `2/3 xx 100`
= 66.66%
APPEARS IN
संबंधित प्रश्न
In the year 2015 ticket to the world cup cricket match was ₹ 1,500. This year the price has been increased by 18%. What is the price of a ticket this year?
Radhika bought a car for Rs 2,50,000. Next year its price decreased by 10% and further next year it decreased by 12%. In the two years overall decrease per cent in the price of the car is ______.
Increase of a number from 150 to 162 is equal to increase of ______ per cent.
2500 is greater than 500 by ______ %.
Four times a number is a ______ % increase in the number.
Number of students appearing for class X CBSE examination increases from 91,422 in 1999 – 2000 to 11,6054 in 2008 – 09. Increase in the number of students appeared is approximately 27%.
In 1975, the consumption of water for human use was about 3850 cu.km/year. It increased to about 6000 cu.km/year in the year 2000. Find the per cent increase in the consumption of water from 1975 to 2000. Also, find the annual per cent increase in consumption (assuming water consumption increases uniformly).
What is the percentage increase or decrease in the number of seats won by A, B, C and D in the general elections of 2009 as compared to the results of 2004?
| Political party | Number of seats won in 2004 |
Number of seats won in 2009 |
| A | 206 | 145 |
| B | 116 | 138 |
| C | 4 | 24 |
| D | 11 | 12 |
For an amount, explain why, a 20% increase followed by a 20% decrease is less than the original amount.
