# Aptitude Percentage Question and answer

##### 6)One third of three fifth of two seventh of a number is 30. What will be 20% of that number

A) 140

B) 120

C) 180

D) 200

Explanation:(1/3)*(3/5)*(2/7)*a=30
=>a=30/0.05=600
20% of 600 =120

##### 7) What percent is 120 of 90? ?

A) 133 1/3%

B) 132 2/3%

C) 132 1/3%

D) None of these

Explanation: 120/90 = 4/3
4/3 × 100 = 400/3 = 133 1/3 %

##### 8) Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. What are the marks obtained by them ?

A) 43, 30

B) 42, 39

C) 42, 33

D) 44, 36

Explanation:Let the marks secured by the two students are x and (x + 9)
Then sum of their marks = x + (x + 9) = 2x + 9
Given that (x + 9) was 56% of the sum of their marks
=>(x+9) = 56/100(2x+9)
=>(x+9) = 14/25(2x+9)
=> 25x + 225 = 28x + 126
=> 3x = 99
=> x = 33
Then (x + 9) = 33 + 9 = 42
Hence their marks are 33 and 42

##### 9) Three candidates contested an election and received 1136, 7636 and 11628 votes respectively. What percentage of the total votes did the winning candidate get ?

A) 51%

B) 57%

C) 69%

D) 84%

Explanation:Total number of votes polled = (1136 + 7636 + 11628) = 20400.
Percentage that winning candidate get from total number of votes = (11628 / 20400 x 100)% = 57%. .

A) 10%

B) 3%

C) 21%

D) 5%