CRE 2 - Percentage Change | Arithmetic - Percentage
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The population of a town increases from 4200 to 5100. What is the approximate percentage increase?
- (a)
10%
- (b)
12%
- (c)
25%
- (d)
20%
- (e)
21%
Solution
Discuss
ReportA number increases by 40 when added to 20% of itself. The number is
- (a)
200
- (b)
60
- (c)
80
- (d)
320
A positive number was by mistake divided by 6 instead of being multiplied by 6. What is the % error on the basis of correct answer?
- (a)
3
- (b)
97
- (c)
17
- (d)
83
A candidate who gets 30% of the marks fails by 50 marks. But another candidate who gets 45% marks gets 25 marks more than necessary for passing. Find the number of marks for passing:
- (a)
150
- (b)
200
- (c)
250
- (d)
275
Two numbers are 50% and 60% less than a third number. How much per cent is the second number less than the first?
- (a)
15%
- (b)
20%
- (c)
10%
- (d)
25%
A student needs 40% marks to pass in an exam. He got 240 marks and failed by 40 marks. Find the total marks?
- (a)
700
- (b)
800
- (c)
400
- (d)
300
- (e)
None of these
A earns 20% more than B but 25% less than C. If B earns Rs. 900 less than C, find the earnings of C :
- (a)
Rs. 2500
- (b)
Rs. 1600
- (c)
Rs. 1500
- (d)
Rs. 2400
After 38 litres of petrol were poured into an empty tank, it was still 5% empty. How much petrol more must be poured into the tank in order to fill it?
- (a)
38 liters
- (b)
40 liters
- (c)
38.5 liters
- (d)
2 liters
If 17% is lost in grinding wheat, a country has to import 6 lakhs tonnes of wheat but can maintain from its resources if only 5% is lost in grinding. The quantity of wheat grown in the country is
- (a)
5000 tonnes
- (b)
50,000 tonnes
- (c)
5,00,000 tonnes
- (d)
50,00,000 tonnes
In a town, there are 3000 men and 3000 women. If men increased by 20% and women decreased by 40%, women as a percent of men now is:
- (a)
50%
- (b)
66.66%
- (c)
80%
- (d)
83.33%
- (e)
None of these
If the numerator of a fraction is increased by 50% and denominator decreased by 20%, the new value is 3/10. What was the original fraction?
- (a)
3/5
- (b)
4/5
- (c)
7/8
- (d)
3/2
- (e)
None of these
A 'laddoo' is made of 60% flour, 20% sugar and the rest is 'ghee'. What is the quantity of 'ghee' in two kg laddoos?
- (a)
400 gms
- (b)
2 kgs
- (c)
100 gms
- (d)
450 gms
- (e)
None of these
If A's income is 50% more than B's, then B's income is what percent of A's income?
- (a)
66.66%
- (b)
80%
- (c)
90%
- (d)
125%
- (e)
None of these
A number when increased by 36.36% becomes 180. Find the number?
A number is doubled. By what % must it be reduced to get back the original number.
- (a)
33.33%
- (b)
40%
- (c)
50%
- (d)
None of these
Match the percenetage change with its corresponding multiplication factor.
- (a)
1 - (a), 2 - (b), 3 - (c), 4 - (d)
- (b)
1 - (c), 2 - (d), 3 - (a), 4 - (b)
- (c)
1 - (c), 2 - (d), 3 - (b), 4 - (a)
- (d)
None of these
A number is first doubled and then reduced to one-third of its new value. What is the overall percentage change in the value of the number?
- (a)
- 32.5%
- (b)
- 25%
- (c)
- 40%
- (d)
- 33.33%