58
Q:

# 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 ?

 A) 324138 B) 349680 C) 509940 D) None of these

Explanation:

Total Population = 728400

Migrants = 35 % of 728400  =  254940

$\inline \therefore$local population = (728400 - 254940) = 473460.

Rural migrants = 20% of 254940 = 50988

Urban migrants = (254940 - 50988) = 203952

Female population = 48% of 473460 + 30% of 50988 + 40% of 203952 = 324138

Q:

A number is decreased by 30%, then increased by 30%, then further increased by 30%. What is the net increase/decrease percent in the number (correct to the nearest integer)?

 A) 19% decrease B) 19% increase C) 18% increase D) 18% decrease

Answer & Explanation Answer: C) 18% increase

Explanation:

1 170
Q:

A number is increased by 30%, then decreased by 30%, then further decreased by 30%. What is the net increase/decrease percent in the number(correct to the nearest integer)?

 A) 36% decrease B) 36% increase C) 40% increase D) 40% decrease

Answer & Explanation Answer: A) 36% decrease

Explanation:

2 159
Q:

A man bought 2 articles for ₹4158 each. He sold one article at 15% loss. Then at what percent profit the other article should be sold so that no profit/loss percentage is earned.

 A) 15% B) 10% C) 12% D) 18%

Explanation:

1 1001
Q:

Two students, A and B, appeared for an examination. A secured 8 marks more than B and the marks of the former was 55% of the sum of their marks. The marks obtained by A and B, respectively, are:

 A) 44, 36 B) 40, 32 C) 36, 28 D) 38, 30

Answer & Explanation Answer: A) 44, 36

Explanation:

6 536
Q:

If each side of a rectangle is increased by 22%, then its area will increase by:

 A) 48.84% B) 50% C) 44% D) 46.65%

Explanation:

2 10350
Q:

Two students, A and B, appeared for an examination. A secured 8 marks more than B and the marks of the former was 55% of the sum of their marks. The sum of the marks obtained by A and B is:

 A) 75 B) 100 C) 90 D) 80

Explanation:

2 407
Q:

The sum of salaries of A and B is ₹43000. A spends 95% of his salary and B spends 80% of his salary. If their savings are the same, what is A’s salary (in ₹)?

 A) 8000 B) 34400 C) 10600 D) 35000

Explanation:

2 2891
Q:

Two students, A and B, appeared for an examination. A secured 8 marks more than B and the marks of the former was 60% of the sum of their marks. The sum of the marks obtained by A and B is:

 A) 75 B) 45 C) 40 D) 50