25%

27%

35%

67%

A. 25%

$50\%of(x-y)=30\%of(x+y)\iff (50/100)(x-y)=(30/100)(x+y)\phantom{\rule{0ex}{0ex}}\iff 5(x-y)=3(x+y)\iff 2x=8y\iff x=4y$

therefore required percentage $=\left(\right(y/x)X100)\%=\left(\right(y/4y)X100)=25\%$

120%

130%

800%

1300%

25%

27%

35%

67%

2500

2789

3456

1234

**In expressing a length 810472 km as nearly as possible with three significant digits , find the percentage error.**

34%

0.34%

0.034%

.32%

123

140

156

234

50%

100%

125%

150%

**Evaluate : ****28% of 450+ 45% of 280**

252

256

245

238

**If the sales tax reduced from 3 1/2 % to 3 1/3%, then what difference does it make to a person who purchases an article with market price of Rs. 8400 ?**

10

12

14

19

**Difference of two numbers is 1660. If 7.5% of the number is 12.5% of the other number , find the number ?**

3456

4156

4150

5678

2%

4%

5%

8%

48gm

45gm

40gm

38gm

100%

120%

180%

200%

1%

2%

3%

4%

**In an election between two candidates, 75% of the voters cast thier thier votes, out of which 2% of the votes were declared invalid. A candidate got 9261 votes which were 75% of the total valid votes. Find the total number of votes enrolled in that election.**

15600

12350

13420

16800

8

*6*

7

5