Percentage


  1. If 35% of A’s income is equal to 25% of B’s income, then the ratio of A’s income to B’s income is









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    According to the question,
    A × 35% = B × 25%

    A
    =
    25
    =
    5
    B357

    Correct Option: B

    According to the question,
    A × 35% = B × 25%

    A
    =
    25
    =
    5
    B357

    Hence , required ratio is 5 : 7 .


  1. The ratio of the number of boys and girls in a school is 3 : 2. If 20% of the boys and 25% of the girls are scholarship holders, the percentage of the school students who are not scholarship holders is









  1. View Hint View Answer Discuss in Forum

    Let the number of students in school be 100.
    Boys ⇒ 60
    Girls ⇒ 40
    Students who do not hold scholarship :

    Boys ⇒
    60 × 80
    = 48
    100

    Correct Option: B

    Let the number of students in school be 100.
    Boys ⇒ 60
    Girls ⇒ 40
    Students who do not hold scholarship :

    Boys ⇒
    60 × 80
    = 48
    100

    Girls ⇒
    40 × 75
    = 30
    100

    Required answer = 48 + 30 = 78
    ∴ Required percentage =
    78
    × 100 = 78%
    100



  1. The ratio between Ram’s age and Rahim’s age is 10 : 11. What is the age of Rahim in percentage of Ram’s age ?









  1. View Hint View Answer Discuss in Forum

    The ratio of Ram’s age and Rahim’s age = 10 : 11.
    Let Ram’s age = 10k and Rahim’s age = 11k
    According to question ,

    Correct Option: B

    The ratio of Ram’s age and Rahim’s age = 10 : 11.
    Let Ram’s age = 10k and Rahim’s age = 11k
    According to question ,

    Required percent =
    11
    × 100 = 110%
    10


  1. If 10% of p is 3 times 15% of q, then find p : q.









  1. View Hint View Answer Discuss in Forum

    According to the question,

    p ×
    10
    = 3 × q ×
    15
    100100

    ⇒ 10p = 45q

    Correct Option: B

    According to the question,

    p ×
    10
    = 3 × q ×
    15
    100100

    ⇒ 10p = 45q
    p
    =
    45
    =
    9
    q102



  1. There is a ratio of 5: 4 between two numbers. If 40 % of the first number is 12, then what would be 50 % of the second number?









  1. View Hint View Answer Discuss in Forum

    Let the numbers be 5k and 4k respectively
    According to the question,

    5k ×
    40
    = 12
    100

    ⇒ 2k = 12 ⇒ k = 6

    Correct Option: A

    Let the numbers be 5k and 4k respectively
    According to the question,

    5k ×
    40
    = 12
    100

    ⇒ 2k = 12 ⇒ k = 6
    ∴ 4k of 50% = 4 × 6 ×
    1
    = 12
    2