Quantitative Apitude-Percentage
Quantitative Apitude-Percentage
51. If x% of a is the same as y% of b, then z%of b is
- yz/x% of a
- xy/z% of a
- xz/y% of a
- None of these
52. In a city, 35% of the population is composed of migrants, 20% of whom are from rural areas. Of the local population, 48% is female while this figure for rural and urban migrants is 30% and 40% respectively. If the total population of the city is 728400. What is its female population ?
- 324138
- 349680
- 509940
- None of these
53. A's marks in Biology are 20 less than 25% of the total marks obtained by him in Biology. Maths and drawing. If his marks in Drawing be 50, what are his marks in Maths ?
- 40
- 45
- 50
- Can't be determined
54. An increase of Rs. 60 in the monthly slary of Madan made present monthly salary ?
- Rs. 180
- Rs. 240
- Rs. 300
- Data Inadequate
55. From a container having pure milk, 20% is replaced by water and the process is repeated thrice At the end of the third operation, the milk is :
- 40% pure
- 50% pure
- 51.2% pure
- 58.8% pure
56. In a public school, 1/5th of girls and 1/4th of boys are under 12 years of age. If the total strength of the school is 1000 and number of girls is 2/5th of the total, what part of the total strength of the school is accounted for by those which are 12 years or more of age ?
- 23%
- 45%
- 55%
- 77%
57. The salaries of A and B together amount to Rs. 2000. A spends 95% o his salary and B, 85% of his. If now, their savings are the same, what is A's salary ?
- Rs. 1500
- Rs. 1250
- Rs. 750
- Rs. 1600
58. A debtor can pay 87 paise in the rupee, but if his creditors would take 20% of his debts, he could pay them and have Rs. 42 left. His debts and assets respectively are
- Rs. 600, Rs. 522
- Rs. 500, Rs. 521
- Rs. 400, Rs.520
- Rs. 1000, Rs. 525
59. 300 grams of sugar solution has 40 sugar in it.How much sugar should be added to make it 50% in the solution ?
- 10 gms
- 40 gms
- 60 gms
- 80 gms
60. the quantity of water ( in ml) needed to reduce 9 ml shaving lotion containing 50% alcohol to a lotion containing 30% alcohol, is :
- 4
- 5
- 6
- 7