#271 - Maths Equation Operator Puzzle
I know there are two methods by using three time the same number with an plus(+) operator , you can make sum as 60.
One of them is 20+20+20.
whats the other way ?
The Other way is 55+5
#272 - Identify The Word Puzzle
The first two letters of an English word refer to a man, the first three refer to a woman, the first four to a great man and the whole word to a great woman. What is the word?
Heroine
#273 - Tricky Funny Riddle
Manish is the son of Harish.
So,
Harish is the_____of Manish's father ?
Name
#274 - Cross The Desert Logical Riddle
Mr. Rawat wishes to cross a the Sahara desert.
It requires 6 days to cross.
One man can only carry enough food and water for 4 days.
What is the fewest number of other men required to help carry enough food for Mr. Rawat to cross ?
2men
Say 2 helpers are A & B
A food B food Rawat's Food
End of Day 1 : 1 4 4
Now 'A' will head back
End of Day 2 : N/A 2 4
Now 'B' will head back
Now Mr. Rawat have 4 day food :-)
#275 - Missing Letter Sequence Puzzle
Can you find the missing letter in the sequence ?
S - T - I - L - ? - T - F - Y - C
The answer is M.
These are letter of the question asked in reverse order.
#276 - Find Number Puzzle
Can you find the least possible number such that
If the number is divided by 3 , it gives the remainder of 1;
If the number is divided by 4 , it gives the remainder of 2
If the number is divided by 5 , it gives the remainder of 3;
If the number is divided by 6 , it gives the remainder of 4.
58.
Approach
LCM of the numbers 3,4,5 & 6 is 60.
So if i divide 60 by any of the four number , it gives remainder as 0.
Now to get reminder as desired, is should be 2 short of 60. (3-1,4-2,5-3,6-4 )
#277 - Hard Number Series Problem
Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?
20(Twenty) : when you write them , these are only numbers having vowel 'E'
#278 - Marbles Puzzle
There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.
How many marbles are in the box ?
There are 3 marbles (1 blue, 1 green, and 1 red).
#279 - Maths Classic Race Puzzle
Lavesh, Bolt, and Lewis race each other in a 100 meters race. All of them run at a constant speed throughout the race.
Lavesh beats Bolt by 20 meters.
Bolt beats Lewis by 20 meters.
How many meters does Lavesh beat Lewis by ?
Lavesh beats Lewis by 36 meters.
It is tempting to guess that Lavesh beats Lewis by 40 meters, but when Lavesh finishes and is 20 meters ahead of Bolt, Bolt is NOT 20 meters ahead of Lewis (he's only 16 meters ahead), and it will take a couple more seconds before Bolt increases his lead over Lewis to 20 meters.
To figure out the answer, we let Lavesh's speed be A meter/second. So it takes him 100/A seconds to finish the race. At this point, we know that Bolt has run 80 meters (since Lavesh beats him by 20 meters). So Bolt runs 80 meters in 100/A seconds, meaning that he is running at a speed of (80/(100/A)) meters/second, or (8A/10) meters per second.
So we then know that it takes Bolt 100/(8A/10) seconds to finish the race, or 125/A seconds. At this point, we know that Lewis has run 80 meters (since Bolt beats him by 20 meters). So Lewis runs 80 meters in 125/A seconds, meaning that he is running at a speed of (80/(125/A)) meters/second, or 80A/125 meters per second.
Now that we know Lewis's speed, we just need to figure out how far he had run when Lavesh finished the race. Since Lavesh finished in 100/A seconds, we can determine that Lewis had run (100/A) * (80A/125) = 8000/125 = 64 meters when Lavesh finished the race. And so Lavesh beat him by (100 - 64) = 36 meters.
#280 - Logic Problem
There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag.
Randomly remove two balls from the bag.
* If they are of different colors, put the blue one back in the bag.
* If they are the same color, take them out and put a red marble back in the bag.
Repeat this until only one marble remains in the bag.
What is the color of the sole marble left in the bag ?
The last marble will be blue.
Since balls can only be taken out in pairs and you started off with an odd number of blues there is always going to be one blue left over that you'll keep putting back in the box until it's left on it's own.