singapore
rvrc
'puters
psle maths
surprise
100
what were the dining hours of RVRC's finest dining hall
breakfast - 7.30am to 10.30am
dinner - 5.30pm to 9.30pm
100
One gigabyte is equal to how many megabytes?
1000
100
How heavy are eight $1 Singapore coins?
- 6g
- 60g
- 600g
- 6kg
Answer: 60g
200
what offence(s) was former minister Iswaran charged with in 2024
4 charges of "obtaining gratification as a public servant" and 1 charge of obstructing justice
200
who ran the RVRC OHS counter?
Fadilah (?)
200
what computer part is this?
good ol 8gb stick o' ram
200
Jess needs 200 pieces of ribbon, each of length 110cm, to decorate a room for a party. Ribbon is sold in rolls of 25m each.
What is the least number of rolls of ribbon that Jess needs to buy?
A common mistake is to do the following:
110cm x 200 ribbons = 22,000cm = 220m
220÷25 = 8
8+1=9 (To account for the remaining 20m)
However, the trick to solving the problem lies in some CrEaTiVe thinking. For starters, students must come to the realisation that each ribbon roll is going to have a small portion that is unused and discarded.
110cm = 1.1m
25÷1.1=22.72 rolls needed
Here, it becomes clear that 0.72m is the remaining “scrap” from each roll which cannot be used to make a 1.1m piece of ribbon. We also now know that 22 pieces can be made from each roll. So…
200÷22=9
9+1 extra roll to account for scraps = 10
300
Which component of a computer is responsible for long-term data storage?
Correct Answer
C. HDD (Hard Disk Drive)Explanation
The Hard Disk Drive (HDD) is the main storage device used for long-term data retention on a computer. Unlike RAM, which is temporary memory, HDDs store data persistently, even when the computer is powered off. This includes the operating system, software applications, documents, photos, and videos. Though newer technologies like SSDs (Solid State Drives) are also common, HDDs have traditionally been the go-to component for large-capacity storage at a relatively low cost.
300
Jim bought some chocolates and gave half of them to Ken. Ken bought some sweets and gave half of them to Jim. Jim ate 12 sweets and Ken ate 18 chocolates. The ratio of Jim’s sweets to chocolates becomes 1:7 and the ratio of Ken’s sweets to chocolates becomes 1:4.
How many sweets did Ken buy?
300
What is Billie Eilish's full name?
Billie Eilish Pirate Baird O’Connell
400
name this RVRC couple
Jackie & Jill
400
Ivan and Helen have an equal number of coins. Ivan has 104 20-cent coins, and some 50-cent coins. Helen has 64 20-cent coins and some 50-cent coins.
Who has a higher value of coins? How much more money is the value of that person’s coins?
Since we know that Ivan and Helen have an equal amount of coins, we should first determine how many 50-cent coins they have:
Helen: 64 20-cent coins + 40 50-cent coins + undetermined 50-cent coins
Ivan: 64 20-cent coins + 40 20-cent coins + undetermined 50-cent coins
In total they should have 104 20- & 50-cent coins, and an undetermined but equal amount of 50-cent coins.
Therefore, to calculate who has the higher value of coins, we just need to get rid of the 64 20-cent coins and the undetermined but equal amount of 50-cent coins on each side of the equation.
(40 x $0.50) – (40 x $0.20) = $12
500
what model and make of GPU is this?
PowerColor Fighter RX 7700 XT
500
Albert and Bernard have just become friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of 10 possible dates:
- May 15, May 16, May 19
- June 17, June 18
- July 14, July 16
- August 14, August 15, August 17
Cheryl then tells Albert and Bernard separately the month and the day of her birthday respectively.
Albert: I don’t know when Cheryl’s birthday is, but I know that Bernard doesn’t know either.
Bernard: At first I didn’t know when Cheryl’s birthday was, but I know now.
Albert: Then I also know when Cheryl’s birthday is.
So when is Cheryl’s birthday?
Let’s take a look at the first statement.
Albert: I don’t know when Cheryl’s birthday is, but I know that Bernard doesn’t know either.
By saying that Bernard has no idea of Cheryl’s birthday, we can begin the process of elimination. The only way for him to know would have been if Cheryl had given him the numbers 18 or 19, which only appeared once in the list. As such, 18th June and 19th May are out.
With Albert confirming that Bernard mustn’t have known the answer, we can cross out May or June from the list too.
Bernard: At first I didn’t know when Cheryl’s birthday was, but I know now.
Next, we gotta remove the repeated days from the list – 14 – as we can safely conclude that Cheryl’s birthday must fall on a unique date for Bernard to have been able to figure it out.
We are now left with the following dates:
- July 16
- August 15, August 17
Albert: Then I also know when Cheryl’s birthday is.
Albert would have known for sure only if he didn’t have to choose between 2 possible dates – meaning August is out.
And that is why the answer is 16th July.