Hard Maths Trivia
1.
What is 6372+5849?
Answer:
12221
Explanation:
The correct answer is 12221. This is the sum of 6372 and 5849.
2.
If there are 23 boys and 21 girls in class A, Class B has 21 boys and 22 girls. How many girls and boys are there in Class A and B combined?
Answer:
44 boys and 43 girls
Explanation:
To find out how many boys and girls there are in Class A and Class B combined, you can add the numbers of boys and girls in each class.
In Class A:
- Boys: 23
- Girls: 21
In Class B:
- Boys: 21
- Girls: 22
Now, add the numbers for each category separately:
Boys in Class A + Boys in Class B = 23 + 21 = 44 boys
Girls in Class A + Girls in Class B = 21 + 22 = 43 girls
So, there are 44 boys and 43 girls in Class A and Class B combined.
In Class A:
- Boys: 23
- Girls: 21
In Class B:
- Boys: 21
- Girls: 22
Now, add the numbers for each category separately:
Boys in Class A + Boys in Class B = 23 + 21 = 44 boys
Girls in Class A + Girls in Class B = 21 + 22 = 43 girls
So, there are 44 boys and 43 girls in Class A and Class B combined.
3.
Your mom is in the market. She bought 22kg of fish and 24kg of chicken. You ate 4kg of chicken and 12kg of fish. How many kg was left of the 2 foods combined?
Answer:
30kg
Explanation:
To calculate how many kilograms of fish and chicken are left, you need to subtract the amounts you ate from the total amounts your mom bought.
For fish:
Total fish bought = 22 kg
Fish eaten = 12 kg
Fish left = Total fish bought - Fish eaten = 22 kg - 12 kg = 10 kg
For chicken:
Total chicken bought = 24 kg
Chicken eaten = 4 kg
Chicken left = Total chicken bought - Chicken eaten = 24 kg - 4 kg = 20 kg
So, there are 10 kilograms of fish and 20 kilograms of chicken left. So, a total of 30 kgs of food combined is left.
For fish:
Total fish bought = 22 kg
Fish eaten = 12 kg
Fish left = Total fish bought - Fish eaten = 22 kg - 12 kg = 10 kg
For chicken:
Total chicken bought = 24 kg
Chicken eaten = 4 kg
Chicken left = Total chicken bought - Chicken eaten = 24 kg - 4 kg = 20 kg
So, there are 10 kilograms of fish and 20 kilograms of chicken left. So, a total of 30 kgs of food combined is left.
4.
You are the baker. You have 253 loaves of bread and 152 donuts. You are making 13 more loaves of bread and 4 donuts, while a boy bought 7 donuts and 17 loaves of bread. How many loaves of bread and donuts do you still have?
Answer:
398
Explanation:
Initially:
- Loaves of bread = 253
- Donuts = 152
After making more:
- Added 13 loaves of bread
- Added 4 donuts
Now, the totals are:
- Loaves of bread = 253 + 13 = 266
- Donuts = 152 + 4 = 156
After the boy's purchase:
- The boy bought 7 donuts, so subtract 7 from the donuts you have: 156 - 7 = 149 donuts
- The boy bought 17 loaves of bread, so subtract 17 from the loaves of bread you have: 266 - 17 = 249 loaves of bread
So, after the boy's purchase, you have 249 loaves of bread and 149 donuts left. So, a combined 398 donuts and loaves are left.
- Loaves of bread = 253
- Donuts = 152
After making more:
- Added 13 loaves of bread
- Added 4 donuts
Now, the totals are:
- Loaves of bread = 253 + 13 = 266
- Donuts = 152 + 4 = 156
After the boy's purchase:
- The boy bought 7 donuts, so subtract 7 from the donuts you have: 156 - 7 = 149 donuts
- The boy bought 17 loaves of bread, so subtract 17 from the loaves of bread you have: 266 - 17 = 249 loaves of bread
So, after the boy's purchase, you have 249 loaves of bread and 149 donuts left. So, a combined 398 donuts and loaves are left.
5.
You have $30.00; you bought a flower that cost $4.50 and sold it to a lady. She gave you $1.20. Then you went to the donut store and bought 3 pieces of donuts that cost $12.45. How much money do you still have?
Answer:
$14.25
Explanation:
Let's calculate your remaining money step by step:
1. You started with $30.00.
2. You bought a flower for $4.50. Subtract this cost: $30.00 - $4.50 = $25.50 remaining.
3. You sold the flower for $1.20. Add this amount: $25.50 + $1.20 = $26.70.
4. You went to the donut store and spent $12.45. Subtract this cost: $26.70 - $12.45 = $14.25.
After buying the flower, selling it, and purchasing the donuts, you have $14.25 remaining.
1. You started with $30.00.
2. You bought a flower for $4.50. Subtract this cost: $30.00 - $4.50 = $25.50 remaining.
3. You sold the flower for $1.20. Add this amount: $25.50 + $1.20 = $26.70.
4. You went to the donut store and spent $12.45. Subtract this cost: $26.70 - $12.45 = $14.25.
After buying the flower, selling it, and purchasing the donuts, you have $14.25 remaining.
6.
What if you divide 352 by 12?
Answer:
29.3
Explanation:
Dividing 352 by 12 results in 29.3. This can be calculated by dividing 352 by 12 using long division or a calculator. The quotient of 29.3 means that 352 can be evenly divided by 12, with no remainder. Therefore, 29.3 is the correct answer.
7.
What if you divide 70 by 69?
Answer:
1.01
Explanation:
When dividing 70 by 69, the result is approximately 1.0145. However, the given options are rounded to two decimal places. The closest option to the actual result is 1.01, which is the correct answer.
8.
What if you divide 20 by 0.5?
Answer:
40
Explanation:
When you divide 20 by 0.5, you are essentially asking how many times 0.5 can go into 20. Since 0.5 is half of 1, it means that it takes two halves to make 1. Therefore, when you divide 20 by 0.5, you are dividing it by half of 1. Dividing 20 by 0.5 gives you a result of 40, because 40 is the number of times 0.5 can fit into 20.
9.
What if you multiply 45.5 by 2?
Answer:
91
Explanation:
Multiplying 45.5 by 2 is equivalent to adding 45.5 to itself. When we add 45.5 to itself, we get a total of 91. Therefore, the correct answer is 91.
10.
What if you add 7778.1 into 0.0001
Answer:
7778.1001
Explanation:
The answer is 7778.1001 because when you add 7778.1 to 0.0001, the sum is 7778.1001.
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