Science
The substance which is an alkali is
a) lemon juice
b) limewater
c) salty water
d) vinegar
b) limewater
When was the Xbox Series x released? (year)
2020
Name 4 types of engineers.
Solve the following equation:
3(2x-5)-3(x-10)=4(3x+1)-1
4/3
There are 25 red balls, 47 green balls and 3 blue balls in a basket. There is a blind man. What is the minimum number of balls that the blind man has to pick to make sure that there are at least 2 balls of different colors?
48
The products of photosynthesis are
oxygen and glucose
Originally Amazon only sold which product?
Books
Which frame is the strongest?
a) Triangle
b) Square
c) Rectangle
d) Hexagon
a) Triangle
1/9 of the shirts sold at Peter’s shop are striped. 5/8 of the remainder are printed. The rest of the shirts are plain colored shirts. If Peter’s shop has 81 plain colored shirts, how many more printed shirts than plain colored shirts does the shop have?
54
Find the next three letters in the series FTNTL.
I, T, S.
The complete sequence is the first letter of every word in the sentence.
The unit used to measure energy is the
joule
Which is not used for general data storage?
a) CPU
b) Hard disc
c) Magnetic tape
d) Optical disc
a) CPU
A transparent material is see-through. What is its opposite called?
a) Block
b) Hidden
c) Opaque
d) Solid
c) Opaque
The mean of four positive integers is 5. The median of the four integers is 6. What is the mean of the largest and smallest of the integers?
A) 3 B) 4 C) 5 D) 6 E) 8
B) 4
A bat and a ball cost $1.10. The bat costs one dollar more than the ball. How much does the ball cost?
The ball costs 5 cents.
One dollar more than 5 cents is $1.05, the sum of which is $1.10.
Fill in the blanks.
The law of ___________ of energy states that energy can not be ____________ or __________
A. Properties, seen, heard.
B. Conservation, created, destroyed.
C. Conservation, created, discovered.
D. Properties, felt, smelt.
B. Conservation, created, destroyed.
The first person to journey into space
Yuri Gagarin
Resistant materials that are designed to break down naturally are known as what?
Biod___________
Biodegradable
Four different positive integers have a product of 110. What is the sum of the four integers?
19
110 = 1 × 2 × 5 × 11.
1 + 2 + 5 + 11 = 19
If:
2 + 2 = 44
3 + 3 = 96
4 + 4 = 168
5 + 5 = 2510
Then:
6 + 6 = ?
3612
The answer is the number multiplied by itself and then the number added to itself. Six multiplied by six is 36, and six plus six is 12.
Most of the elements in the periodic table are.....
a) Gases
b) Liquids
c) Metals
d) Non metals
c) Metals
What does DVD stand for?
a) Digital Verifiable Disc
b) Digital Versatile Disc
c) Digital Videorecorder Data
d) Digital Video Disc
b) Digital Versatile Disc
Who invented the airplane?
Wright brothers
Orville and Wilbur Wright
A group of 42 children all play tennis or football, or both sports. The same number play tennis as play just football. Twice as many play both tennis and football as play just tennis. How many of the children play football?
35
There are three boxes, one contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes have been incorrectly labeled such that no label identifies the actual contents of its box. Opening just one box, and without looking in the box, you take out one piece of fruit. By looking at the fruit, how can you immediately label all of the boxes correctly?
Go to the box labeled “Apples + Oranges.” Since the label is wrong, it must have one or the other.
This is the box to take one piece of fruit from. Whichever comes out is what that box contains. If you took out an apple, the box has only apples. If you took out an orange, vice versa.
Here’s where it gets tricky a bit tricky. But we’re almost done…
Let’s say you grabbed an apple. Move the “Apples” label over to that box. Now it’s correctly labeled.
You know the “Oranges” box is still labeled wrong (because all 3 were labeled wrong to start and you haven’t touched it). And you know it’s not “Apples”.
So it has to be “Apples + Oranges”.
The last box is “Oranges”.
The same process above would work if you had pulled out an orange at the start.