please tell all answers fastly and i will mark you as brainlest
Answers
this takes more time for percentages chapter
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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