Percentage problems Practice Question and Answer

Q:

In a group of students, 70 % can speak English and 65 % can speak Hindi. If 27 % of the students can speak none of the two languages, then what percent of the group can speak both the languages? 

2563 0

  • 1
    38%
    Correct
    Wrong
  • 2
    62%
    Correct
    Wrong
  • 3
    28%
    Correct
    Wrong
  • 4
    23%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "62% "

Q: If 10% of m is the same as 20% of n, then m : n is equal to : 2340 0

  • 1
    2 : 1
    Correct
    Wrong
  • 2
    1 : 2
    Correct
    Wrong
  • 3
    1: 10
    Correct
    Wrong
  • 4
    1 : 20
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "2 : 1"

Q: If 30% of A = 0.25 of B = $$ ({1\over 5}) $$ of C, then A : B : C is equal to : 2049 0

  • 1
    5 : 6 : 4
    Correct
    Wrong
  • 2
    5 : 24 : 5
    Correct
    Wrong
  • 3
    6 : 5 : 4
    Correct
    Wrong
  • 4
    10 : 12 :15
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. " 10 : 12 :15"

Q: $${2\over 3}$$ is what percent of $${1\over 3}=? $$ 1770 0

  • 1
    50%
    Correct
    Wrong
  • 2
    $$33{1\over 3}\% $$
    Correct
    Wrong
  • 3
    50%
    Correct
    Wrong
  • 4
    200%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. " 200%"

Q:

The price of wheat is reduced by 4 % How many kilogram of wheat can now be bought for the money which was sufficient to buy 48 kg of wheat earlier?

1308 0

  • 1
    45 kg
    Correct
    Wrong
  • 2
    50 kg
    Correct
    Wrong
  • 3
    55 kg
    Correct
    Wrong
  • 4
    40 kg
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "50 kg "

Q:

The sum of weights of A and B is 80 kg. 50% of A's weight is $${5\over6}$$ times the weight of B. Find the difference between their weights. 

1248 0

  • 1
    20 kg
    Correct
    Wrong
  • 2
    10 kg
    Correct
    Wrong
  • 3
    25 kg
    Correct
    Wrong
  • 4
    15 kg
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "20 kg"
Explanation :

Let's denote the weight of A as 𝑥x kg and the weight of B as 𝑦y kg.

Given:

  1. 𝑥+𝑦=80x+y=80 (Sum of weights of A and B is 80 kg)
  2. 0.5𝑥=56𝑦0.5x=65y (50% of A's weight is 5665 times the weight of B)

We can solve these two equations to find the values of 𝑥x and 𝑦y, and then calculate the difference between their weights.

From equation 2: 0.5𝑥=56𝑦0.5x=65y Multiply both sides by 2 to get rid of the fraction: 𝑥=56𝑦×2x=65y×2 𝑥=106𝑦x=610y 𝑥=53𝑦x=35y

Now substitute this expression for 𝑥x into equation 1: 53𝑦+𝑦=8035y+y=80 83𝑦=8038y=80 Multiply both sides by 3883: 𝑦=80×38y=80×83 𝑦=30y=30

Now that we have found the weight of B, we can find the weight of A using equation 1: 𝑥+30=80x+30=80 𝑥=80−30x=80−30 𝑥=50x=50

So, the weight of A is 50 kg and the weight of B is 30 kg.

Now, let's find the difference between their weights: Difference=Weight of A−Weight of BDifference=Weight of A−Weight of B Difference=50−30Difference=50−30 Difference=20Difference=20

Therefore, the difference between their weights is 20 kg.

Q:

If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to-

1102 0

  • 1
    150
    Correct
    Wrong
  • 2
    143
    Correct
    Wrong
  • 3
    140.55
    Correct
    Wrong
  • 4
    123.75
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "123.75"

Q:

A boy scored 125 marks and 140 marks in the first test and the second test respectively. If the maximum mark in each test is 150, then the percentage increase in his performance is ___________.

1101 0

  • 1
    5%
    Correct
    Wrong
  • 2
    15%
    Correct
    Wrong
  • 3
    25%
    Correct
    Wrong
  • 4
    10%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "10%"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully