Recent puzzles under tag mathematical

+1 vote

If x^3+y^3+z^3 = x^2+y^2+z^2 = x+y+z = 1 then what would be the max value of xyz?

posted Sep 7, 2017 by anonymous

0 votes

What is the minimum number of people who know everyone else in the group of 100 people...

posted Sep 6, 2017 by anonymous

0 votes

I have 5 real numbers whose product is non-zero. Now, I increase each by 1 and again multiply all of them...

posted Sep 6, 2017 by anonymous

0 votes

If you have sticks of length 1, 2, 3, 4, 5, 6, 7, 8 and 9 cm. How many different triangles con you make using 3 sticks?

posted Sep 6, 2017 by anonymous

0 votes

Create the number 24 using (all of) 1,3,4 and 6. You may add, subtract, multiply and divide. Parentheses are free.

posted Sep 6, 2017 by Madhavi Latha

0 votes

Find the number between 1 and 49 (inclusive) such that the sum to the left of it is equal to the sum to the right of it.

posted Sep 5, 2017 by anonymous

0 votes

The Product of two numbers is six times their sum and the sum of their squares is 325. What are the two numbers?

posted Sep 5, 2017 by anonymous

0 votes

Find the value of 1000^2-999^2+998^2-997^2.......+4-1=?

posted Sep 2, 2017 by anonymous

0 votes

Check the image and tell that what is the area of DEF?

posted Sep 2, 2017 by anonymous

0 votes

Find the largest angle of Triangle ABC in the following image?

posted Sep 2, 2017 by anonymous

–1 vote

Fill + or - for o and make this true: 1 o 1/2 o 1/3 o 1/4 o 1/5 o 1/6 o 1/7 o 1/8 o 1/9 o 1/10 o 1/11 o 1/12 = 0

posted Sep 1, 2017 by anonymous

0 votes

How many aliens are present on this planet?

posted Sep 1, 2017 by Simranjeet Singh

0 votes

How many seconds will elapse between the moment ................. and the moment the end of the train clears the tunnel?

posted Sep 1, 2017 by Pushpak Chauhan

+1 vote

Can you find a number such that if we multiply that number by 1 or 2 or 3 or 4 or 5 or 6...........

posted Aug 30, 2017 by Mogadala Ramana

+1 vote

Whats the probability of choosing correct answer in this random manner - 1) 1/4 2) 1/2 3) 1 4) 1/4

posted Aug 30, 2017 by Mogadala Ramana

+1 vote

With the help of the given information, find the height of the red bar.

posted Aug 28, 2017 by Anil Chaurasiya

0 votes

What is the area of the triangle in the given image, if AP=4, BP=5 and CP=3?

posted Aug 23, 2017 by anonymous

0 votes

A cube is sliced into halves in such a way that cut is a regular hexagon. What is angle between plane of cut and base?

posted Aug 23, 2017 by anonymous

0 votes

Write the numbers from 1 to 100 with either an add or subtract sign between each. Can you make the total 2000?

posted Aug 23, 2017 by anonymous

0 votes

See the image and fill the question mark (?)?

posted Aug 23, 2017 by anonymous

0 votes

Find the product of mean, median and mode for the following values? 23; 16; 45; 28; 18; 23; 36;

posted Aug 22, 2017 by anonymous

0 votes

Some boys and girls have $32 between them. Each boy has $4 and each girl $5. How many boys and girls were there?

posted Aug 22, 2017 by anonymous

0 votes

Using any combination of +, -, x, / and all of 1, 3, 3, 5 once only, make the number 36?

posted Aug 19, 2017 by anonymous

0 votes

The driver of the taxicab was wanting in civility, so Mr. Sharma asked him for his number.......was the fellow's number?

posted Aug 18, 2017 by Madhavi Latha

0 votes

In how many different ways can the letter of the word ELEPHANT be arranged so that vowels always occur together?

posted Aug 17, 2017 by anonymous

0 votes

What is the smallest positive integer which is a multiple of 3 and the product of all of whose digits is 2016?

posted Aug 17, 2017 by anonymous

0 votes

From the given figure, find the area of the colored regions x+y?

posted Aug 17, 2017 by anonymous

0 votes

Find the area of the red spots.

posted Aug 11, 2017 by Prachi Sharma

0 votes

I divided a whole number by another whole number, the answer was 0.4705882 and both was less than 20. Can you find them?

posted Aug 11, 2017 by anonymous

0 votes

Starting with any number at all, I can always reduce it to 4 by applying a consistent rule. Find out what is the rule?

posted Aug 10, 2017 by Naveen Kumar

–1 vote

If; 1 + 9 + 11 = 1 & 12 + 11 + 9 = 1 Then; 14 + 11 + 9 = ?

posted Aug 10, 2017 by Vishal

0 votes

Two ships are sailing on two sides of a lighthouse of ht 144m. Angle of elevation of top of lighthouse is 60° and 30°...

posted Aug 9, 2017 by anonymous

0 votes

The year 1978 is such that the sum of the first two digits and the latter two digits is equal to the middle two ....?

posted Aug 9, 2017 by Bharat Kumar

0 votes

6 cards are drawn at random from a standard deck without replacement. Find the probability that all cards are hearts?

posted Aug 8, 2017 by anonymous

0 votes

A letter is chosen from english alphabet. Find the probability that the letter chosen a. is a vowel b. is a consonant

posted Aug 8, 2017 by anonymous

0 votes

A cylinder of base radius r and height h is dipped vertically to half the height in a bucket full of purple paint....

posted Aug 8, 2017 by anonymous

+1 vote

After how many times of pouring will the remaining water be exactly 1/10 of original amount of water?

posted Aug 8, 2017 by Alivia Clark

0 votes

An object is projected at an angle of elevation of 45° with a velocity of 100 m/s. What is its range and time of flight?

posted Aug 6, 2017 by anonymous

0 votes

If E are even digits and O are odd digits with no digit repeated, find all digits in the image?

posted Aug 6, 2017 by anonymous

0 votes

In the figure square ABCD is inscribed in a circle. EFGH is also a square with points E,F on circle and G,H on square...

posted Aug 6, 2017 by anonymous

0 votes

If blue rectangle area is equal to the sum of 3 squares areas combined as in image, what is relation between a,b,c & d?

posted Aug 6, 2017 by anonymous

0 votes

Convert into improper fraction: 56÷4

posted Aug 3, 2017 by Ranjana Chavan

0 votes

A body is projected at velocity of 40 m/s, after 2 sec it crosses a vertical pole of height 20.4 m...

posted Aug 3, 2017 by anonymous

+1 vote

Can you find out the total number of pages in the book?

posted Aug 3, 2017 by Kushal S

0 votes

If x + 1/x = 4 then what is x^3 + 1/x^3 = ?

posted Aug 1, 2017 by anonymous

0 votes

Double Decker bus can have 80 passengers 35 in upper and 40 in lower deck. how many ways can a group of 80 passengers...

posted Aug 1, 2017 by anonymous

0 votes

See the given dartboard where each smaller circle has 3/4 redius of bigger circle. What is probability of hitting black?

posted Aug 1, 2017 by anonymous

0 votes

In the given image if diameter ACE is divided in the ratio of 2:3 then what is the ratio of shaded and unshaded region?

posted Aug 1, 2017 by anonymous

0 votes

If p is the probability of making a particular shot, for which values of p should you pick Game1 or Game2?

posted Jul 31, 2017 by Naveen Kumar

0 votes

Assume that you have a block weighing 40 kg and have tools to divide it as you want. Now, your task is to cut it....

posted Jul 31, 2017 by Subhajit Maity