Question

please tell all answers fastly and i will mark you as brainlest ​

Answer 1

this takes more time for percentages chapter

Answer 2

Answer:

2) Expenditure = Income - savings

given income = 14,500/-

savings = 20% of his salary

= 20% of 14500

= 14500 * 20 /100

= 2990 /- His savings

now Expenditure = 14500 - 2990 = 11600/-

3) Let B's salary be = x

A's salary = ( 50% of x + x )

= 0.5x + x = 1.5x

Percentage = 1.5x - x. * 100

1.5

0.5/1.5* 100 = 33.33

B's salary is 33.33% less than a's salary

4) Let the price of cooking oil = x /-

Cooking oil price increased by 30 %

New price = X + 30X/ 100 = 130x/100

Reduction in consumption = 30X/100 * 100

130X/100

= 23 1/13

5) Let no of candidates be = 100

passed = 96% of x

failed = 50 students

failed = ( 100 - 96 ) = 4%

so 4% = 50

1% = 50/4 = 12.5

Total = 100 * 12.5 = 1250

total candidates appeared for exam = 1250

6) Let total no of workers = x

Out of that ,male workers = 272

Female candidates = ( x - 272 )

Given 15 % are females

. 85% = males

so 85/100 x = 272

x = 272 * 100 / 85

x = 320

total workers = 320

7) Let the firsf no be = x

Increased by 10%

= x + x/10 = 11x / 10

Now decrease by 10%

.11x/10 - ( 11x/10 ) /10 = 99x/100

.Net increase or net decrease =

( original number - new number ) * 100 /100

Decrease is x - 99x /100

Decrease is x - 99x /100 X /100

Net decrease = 1 %

8) Let original salary be = 100

After increase = 100+ 25 = 125 /-

to restore original salary

decrease = ( 125- 100) /125 = 25/125 = 20%

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