Hand picked material and question banks

Latest Popular RatedShowing Page 32 of 48Total Questions 380 Join Examsbook

Q:
If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
1022 0

Answer : 1. "15,972"
Explanation :
To find the population after 3 years given that it increases at a rate of 10% per annum, you can use the formula for exponential growth:
𝑃=𝑃0×(1+𝑟)𝑛P=P0×(1+r)n
Where:
𝑃P = Population after 𝑛n years
𝑃0P0 = Initial population
𝑟r = Rate of increase (in decimal form)
𝑛n = Number of years
Given:
𝑃0=12,000P0=12,000 (Initial population)
𝑟=0.10r=0.10 (10% increase per annum)
𝑛=3n=3 (Number of years)
Substitute these values into the formula:
𝑃=12,000×(1+0.10)3P=12,000×(1+0.10)3
𝑃=12,000×(1.10)3P=12,000×(1.10)3
𝑃=12,000×(1.331)P=12,000×(1.331)
𝑃=15,972P=15,972
So, the population after 3 years would be approximately 15,972.

Q:
A shopkeeper bought 240 ton rice. He sold 4/5th is at 37.5% profit, then find at what percentage profit or loss he should sell remaining rice, so as to gain 25% on the whole transaction?
1021 0

Answer : 2. " loss"

Q:
A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true?
1018 0

Answer : 2. "B is 36 % less than D."

Q:
In a college 12% of all the students are interested in sports, 10% of the total students are interested in singing and three-fourth of the total students are interested in dancing and remaining 15 students are not interested in any activity, How many total students are there in the college?
1017 0

Answer : 2. "500"

Q:
If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A?
1016 0

Answer : 3. "500%"

Q:
The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the difference between their weights.
1008 0

Answer : 1. "20 kg"
Explanation :
Let's denote the weight of A as 𝑥x kg and the weight of B as 𝑦y kg.
Given:
𝑥+𝑦=80x+y=80 (Sum of weights of A and B is 80 kg)
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:
A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?
1008 1

Answer : 4. "Rs. 10 per kg "

Q:
In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers?
1007 0

Q:
If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
1022 0

Q:
A shopkeeper bought 240 ton rice. He sold 4/5th is at 37.5% profit, then find at what percentage profit or loss he should sell remaining rice, so as to gain 25% on the whole transaction?
1021 0

Answer : 2. " loss"

Q:
A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true?
1018 0

Answer : 2. "B is 36 % less than D."

Answer : 2. "500"

Q:
If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A?
1016 0

Answer : 3. "500%"

Q:
The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the difference between their weights.
1008 0

Q:
A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?
1008 1

Answer : 4. "Rs. 10 per kg "

Q:
In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers?
1007 0

Answer : 3. "360"

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Q: If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years. 1022 06426e27c72ca731a990e28e2

Q: A shopkeeper bought 240 ton rice. He sold 4/5th is at 37.5% profit, then find at what percentage profit or loss he should sell remaining rice, so as to gain 25% on the whole transaction? 1021 0606d5e37affa2d5265b80ba4

Answer : 2. " loss"

Q: A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true? 1018 06051c855a37d522d6c152063

Answer : 2. "B is 36 % less than D."

Answer : 2. "500"

Q: If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A? 1016 064b503ad88d5e4f52dd1b286

Answer : 3. "500%"

Q: The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the difference between their weights. 1008 064ccef6ba919c8488e304799

Q: A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar? 1008 160f7e536ef8c4b405cab40e1

Answer : 4. "Rs. 10 per kg "

Q: In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers? 1007 060585e6819447609ff02c0c5

Answer : 3. "360"

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Report Error

Q:
If the population of a town is 12.000 and the population increases at the rate of 10% per annum, then find the population. after 3 years.
1022 0

Q:
A shopkeeper bought 240 ton rice. He sold 4/5th is at 37.5% profit, then find at what percentage profit or loss he should sell remaining rice, so as to gain 25% on the whole transaction?
1021 0

Q:
A is 40 % more than B and B is 60% less than C. If C is 60 % more than D, then which of the following is true?
1018 0

Q:
If 20% of (A + B) = 30% of (A − B), then what percentage of B is equal to A?
1016 0

Q:
The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the difference between their weights.
1008 0

Q:
A reduction of 20% in the price of sugar enables a housewife to purchase 6 kg. more for Rs. 240. What is the original price per kg. of sugar?
1008 1

Q:
In a company, there are 75% skilled workers and remaining ones are unskilled. 80% of skilled workers and 20% of unskilled workers are permanent. If number of temporary workers is 126, then what is the number of total workers?
1007 0