Do you think your math skills are strong enough?
Are you proud of your quick calculation?
Are your concepts in mathematics solid?
If the answer to these three questions is yes, today we become rivals.
Just for 5 minutes, let’s forget that we are friends.
Here we challenge you today to solve these difficult mathematical puzzles.
Without wasting any more moments, let’s jump straight to the difficult puzzles.
Here you have!
Difficult math puzzle 1:
John, Lucifer and Henry are three brothers. Interestingly, his current age is optimal. What’s more interesting is that the difference between their ages is also raw. How old are they?
Difficult math puzzle 2:
James has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half dollar, quarter, dime, or nickel. What coins does he have?
Difficult math puzzle 3:
There are 25 red balls and 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 choose to ensure that there are at least 2 balls of different colors?
This fun rooster brain teaser might roast you hard!
Difficult math puzzle 4:
Daniel has 8 bricks. Seven of them weigh the same and one is a little heavier. Using a scale, how can Daniel find the heavier brick by two weights?
Difficult math puzzle 5:
Two travelers spend from 12 to 6 walking along a flat road, up a hill and back. Its pace is 4 mph on the flat, 3 mph uphill and 6 mph downhill. How far do they walk and at what time do they reach the top of the hill?
So are you sweating?
Relax, here are the answers!
ANSWERS:
Difficult math puzzle 1:
John, Lucifer and Henry are three brothers. Interestingly, his current age is optimal. What’s more interesting is that the difference between their ages is also raw. How old are they?
ANSWER:
Lucifer is 2 years old, John is 5, and Henry is 7. Age difference 7 – 2 = 5 is cousin; 7 – 5 = 2 is prime; 5 – 2 = 3 is prime.
Difficult math puzzle 2:
James has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half dollar, quarter, dime, or nickel. What coins does he have?
ANSWER:
Half dollars, quarters, four dimes, and four pennies.
Difficult math puzzle 3:
There are 25 red balls and 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 choose to ensure that there are at least 2 balls of different colors?
ANSWER:
48 balls. There is a small chance that you will collect 47 green balls in a row.
Difficult math puzzle 4:
Daniel has 8 bricks. Seven of them weigh the same and one is a little heavier. Using a scale, how can Daniel find the heaviest brick in two weighings?
ANSWER:
First, you divide them into piles of 3, 3, and 2 bricks. Then weigh both groups of 3 against each other. If they balance, he knows that the brick is one of the 2 bricks that are not weighed and he can weigh them to find the heavier one. If the stacks of 3 bricks do not balance, he will weigh 2 of the 3 bricks. If they balance, he will know that the brick left unweighed is heavier, or if they do not balance, he will find the heavier one.
Difficult math puzzle 5:
Two travelers spend from 12 to 6 walking along a flat road, up a hill and back. Its pace is 4 mph on the flat, 3 mph uphill and 6 mph downhill. How far do they walk and at what time do they reach the top of the hill?
ANSWER:
They walk 4 miles and reach the top of the hill at three-thirty.
So is your confidence shaking? Did you manage to get even one of them right? Relax, we are not your math teacher and we will not deduct your grades. And oh, let us end our rivalry and shake hands in friendship.
It’s very cold, but the bear is having a great time. But where is it? Find the hidden bear!
Categories: Optical Illusion
Source: ptivs2.edu.vn