Math Puzzles and Logic Problems
A collection of mathematical puzzles including number series, logic puzzles, word problems, probability questions, and arithmetic challenges
Questions
If a marchent offers discount of 40% on the marked price of goods and ends up selling the goods at cost price, What was the mark up ?
- 28.57%
- 40%
- 66.66%
- 58.33%
When four fair dice are rolled simultaneously, in how many outcomes will atleast one of the dice show 3?
- 671
- 620
- 155
- 625
There are 12 yes no questions. In how many ways these questions be answered?
- 1024
- 2048
- 4096
- 144
What is sum of all positive integers upto 1000, which are divisible by 5 and not divisible by 2?
- 10050
- 5050
- 5000
- 50000
Jim travels first 3 hours of his journey at 60 mph speed and remaining 5 hours at 24 mph speed. what is average speed if Jim's travel in mph?
- 42
- 36
- 37.5
- 42.5
Anita had to do a multiplication. instead of taking 35 as one of the numbers, ahe took 53. As a result, the product went up by 540. what is new product?
- 1050
- 540
- 1440
- 1590
How long will it take for a sum of money to grow from Rs.1250 to Rs.10000, if it is invested at 12.5% p.a simple interest?
- 8
- 64
- 72
- 56
A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony: There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?
- 237
- 31
- 500
- 250
Three horses are standing in a triangular field, which is exactly 100 yards on each side. One horse stands at each corner; and simultaneously all three set off running. Each horse runs after the horse in the adjacent corner on his left, thus following a curved course, which terminates in the middle of the field, all three horses arriving there together. The horses obviously ran at the same speed, but just how far did they run?
- 50
- 150
- 133
- 100
A hiker walked for two days. On the second day the hiker walked 2 hours longer and at an average speed 1 mph faster than he walked on the first day. If during the two days he walked a total of 64 miles and spent a total of 18 hours walking, what was his average speed on the first day?
- 1
- 4
- 3
- 2
A long and straight row of soldiers is marching with constant speed. The dog of the commander runs along the row from the end till the beginning, from the beginning till the end, from the end till the beginning etc. This takes always 2 minutes, 1 minute, 2 minutes, etc. At some point the soldiers have to pass a very small bridge. However, the commander does not trust the strength bridge completely. He wonders how much time it will take them to pass the bridge when they stay marching with the same speed. How much time is that?
- 4
- 4.5
- 5
- 4.75
A very rich lady goes with a bag of coins (not more than 400) to the city. In the city she meets four vagabonds. She gives the first vagabond 4 coins and a quarter of the number of coins which is left in the bag. She applies the same procedure to the second, third and fourth vagabond (so division by 4 worked always). With how many coins did she leave home?
- 255
- 300
- 244
- 260
A traveler was captured by a tribe, and sentenced to die, he had two options saying a true sentence would make him die poisoned, saying a false sentence would make him die burned, what can he say to save himself?
- I will not die
- I will die poisoned
- I will die smiling
- I will die burned
Look at this series: 58, 52, 46, 40, 34, ... What number should come next?
- 26
- 28
- 30
- 32
Look at this series: 544, 509, 474, 439, ... What number should come next?
- 404
- 414
- 420
- 445
Look at this series: 31, 29, 24, 22, 17, ... What number should come next?
- 15
- 14
- 13
- 12