Category Archives: Brilliant Quiz

Topic: Probability Difficulty: 6/10       Hint in 3…..   2………   1………   What is 1% of 1000 people?     Solution in 3…..   2………   1………     FULL SOLUTION Step 1: Out of 1000 people, 10 of them (1%) would be a false positive and only 1 would be actuallyContinue reading “Deadly Disease”

  Topic: Numbers Difficulty: 3/10   Hint in 3…..   2………   1………   Use your finger to cover the first and last digit of the options given.     Solution in 3…..   2………   1………     FULL SOLUTION Answer is 20802 As 080 is not a 3 digit palindrome.    

Topic: Logic Difficulty: 7/10 Hint in 3…..   2………   1………   From the top circle, label each circle (a to f) in a clockwise manner. The edges(a,c,e) are used twice while the middle numbers are used only once.         Solution in 3…..   2………   1………     FULL SOLUTION Step 1: AddContinue reading “Triangle Game”

Topic: Numbers Difficulty: 6/10   Hint in 3…..   2………   1………   N is always greater than 66 (since the remainder is 66)     Solution in 3…..   2………   1………     FULL SOLUTION Step 1: N must meet two criteria. It is a factor of 600(subtract 66 from 600) and it isContinue reading “The Devil’s Number”

Topic: Probability Difficulty: 3/10       Hint in 3…..   2………   1………   You only need  2  socks of the same color.     Solution in 3…..   2………   1………     FULL SOLUTION Step 1: There are a total of 3 different colors, which means that there must be at leastContinue reading “Sock-ability”

Topic: Logic Difficulty: 6/10   Hint in 3…..   2………   1………   There can be 2 truths & 1 lie OR 1 truth & 2 lies. Notice that 2 girls agree that Irene is wearing a blue ribbon.     Solution in 3…..   2………   1………     FULL SOLUTION Step 1: FromContinue reading “Triplet Trouble”

Topic: Probability Difficulty: 7/10 Hint in 3….. 2……… 1……… Label the 2 prince as A & B, the 2 princesses as 1 & 2. It is possible to have both prince choosing the same princess and the other way round as well. Since this question is quite tricky, I will give another hint. This questionContinue reading “Ready for love?”

Topic: Logic Difficulty: 3/10 Hint in 3….. 2……… 1……… If you are really lucky, the answer would be 4. But in this case, think of the worst case scenario Solution in 3….. 2……… 1……… FULL SOLUTION The keywords here are “certain” & “minimum” Step 1: Worst case scenario: After taking out 8 balls, 3R, 2G &Continue reading “Pick a ball”

Topic: Logic Difficulty: 8/10 Hint in 3….. 2……… 1……… Lay the 15 cities on a straight line by marking an “x” If there are 15 cities on a line,  14 roads are needed to connect the first city to  all the other cities. Solution in 3….. 2……… 1………   FULL SOLUTION Step 1:Using the hint,Continue reading “The road less traveled”

Topic: Algebra Difficulty: 5/10 Hint in 3….. 2……… 1……… The ratio of the left mass to the right mass is the same for both cases. Solution in 3….. 2……… 1……… FULL SOLUTION Step 1: Using the hint, it is known that (m÷9) = (16÷m) Step 2: By cross multiplication, m² = 16 x 9 Step 3:ApplyingContinue reading “Faulty Balance”