Recent puzzles under tag mathematical

0 votes

If 1 Jan 2015 is Thursday then what would be the probability of 22nd October to be Wednesday?

posted May 20, 2015 by anonymous

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How many integer values of x and y are there such that 4x + 7y= 3 , while |x|<500 and |y|<500 ?

posted May 19, 2015 by Ankit Kamboj

+1 vote

A 120 digit number is formed like ::123456789101112131415.... Find remainder when this number is divided by 8 ?

posted May 19, 2015 by Ankit Kamboj

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Find 28383rd term of the series :: 12345678910111213141516171819202122..... ?

posted May 19, 2015 by Ankit Kamboj

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A speaks truth in 70% cases and B in 80%. What would be the probability of they will contradict each other?

posted May 19, 2015 by Tapesh Kulkarni

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From a circular disc of radius 10 cm, a rectangle of maximum area is cut. What would be the area of the remaining disc?

posted May 19, 2015 by anonymous

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How many cartons will he require to put sixty-six chocolate boxes into ?

posted May 15, 2015 by Aman

+1 vote

Tap A can fill a tank in 4 hours whereas tap B and tap C can empty in 12 hours and 16 hours respectively...

posted May 15, 2015 by anonymous

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What will be the rank of the word "PHYSICS" in the dictionary of word formed by letter of the "PHYSICS" .......

posted May 14, 2015 by Deepak Chitragar

+2 votes

If 31x + 30y + 29z =366 , find x+y+z ? (x,y,z are natural numbers)

posted May 13, 2015 by Ankit Kamboj

+2 votes

Divide 30 by 1/2 and add ten. What is the answer?

posted May 13, 2015 by Riteshwar

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If f(x)= 25^x / ( 25^x + 5 ) then find f(1/99) + f(2/99) + f(3/99) ..... + f(98/99)?

posted May 12, 2015 by Ankit Kamboj

+1 vote

If 6xy + 10x +15y = 39 then find the minimum value of 2x+3y (x, y are positive and real)?

posted May 12, 2015 by Ankit Kamboj

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How much time will he take to climb up the well?

posted May 12, 2015 by Ritika

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What number should replace the question mark?

posted May 12, 2015 by Rahul Chandel

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6% of 6% of 6 = 7% of 7%of x , then what will be the value of x ?

posted May 12, 2015 by Varuna Magar

+2 votes

Captain Reed Died some years after Indian independence. His age at his death was 1/39 of year of his birth...

posted May 11, 2015 by Varuna Magar

+1 vote

Average of five numbers is 12. If four of the numbers are 19, 16, 13 and 9 then what will be the 5th number ?

posted May 11, 2015 by Sidharth Malhotra

+1 vote

sequence of numbers 1 to 3999 written like ( 123456789101112......3999) . Find the number of zeros in this sequence ?

posted May 11, 2015 by Ankit Kamboj

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How many sheep are in my truck and how many sheep are in your truck?

posted May 9, 2015 by Saif Khanam

+3 votes

A fire engine travels seven miles to a fire at a speed of 36mph. Its tank holds 500 gallons ......... will it succeed?

posted May 9, 2015 by Karan Joglekar

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Guess me : What is the five-digit number, no zeroes, in which the second digit is three times the first .............

posted May 8, 2015 by Nikita Sehgal

+1 vote

How much did Sabrina and Samantha have at the beginning of their exchange?

posted May 8, 2015 by Anuradha Tabyal

+1 vote

The mean temperature of Monday to Wednesday was 37C and Tuesday to Thursday was 34C...

posted May 8, 2015 by anonymous

+1 vote

48 can be written as the product of two different numbers a and b such as 48 = a*b. What is the probability that a is 3.

posted May 7, 2015 by anonymous

+1 vote

If seven people meet each other and each shakes hands only once, how many handshakes will there have been?

posted May 6, 2015 by anonymous

+1 vote

Four digit num has all non zero different even digit, what is the probability of first three digits in increasing order?

posted May 6, 2015 by anonymous

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Find the shortest distance from the origin to the surface given by the equation xyz = k^3, where k is a given constant

posted May 6, 2015 by Ankit Kamboj

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What will be the average marks of the class ?

posted May 5, 2015 by Aastha Joshi

+1 vote

Guess me : ENEMY = 2 * LINK LINK + 2 = HELL Then what will be TAXI + HELL?

posted May 5, 2015 by Divya Bharti

+1 vote

How many minutes will it take for Lalit to lap Pawan?

posted May 5, 2015 by Samardeep Acharya

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How much money did he start with?

posted May 4, 2015 by Simranjeet Singh

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How many children are there in the school ground?

posted May 3, 2015 by anonymous

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Difference of number and reverse number is 84942. What would be the sum of all such possible digits

posted May 1, 2015 by anonymous

+1 vote

A woman bought a used car for $600 and sold it a friend for $800........... Did she make any profit and if so, how much?

posted Apr 30, 2015 by Udita

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What will be the probability to get his success in that exam ?

posted Apr 30, 2015 by Mohammad

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What is the Probability of success in the exam for the student?

posted Apr 30, 2015 by anonymous

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What is the time taken by him to swim to a place 10 km upstream and back ?

posted Apr 29, 2015 by Akriti

+2 votes

What will be sum of x and y if x,y are part of series 4, 16, 7, 49, 13, 169, x, y

posted Apr 28, 2015 by anonymous

+1 vote

Guess me : I'm a four-digit number! My 2nd digit is twice greater than my 3rd. The sum of all my ..............

posted Apr 27, 2015 by Prithvi

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If one and a half boys, eat one and a half burgers in one and a half hours. How many burgers can 9 boys eat in 3 hours?

posted Apr 27, 2015 by Varuna Magar

+1 vote

If x+y+z = 7, 2x-y+z = 4 Then 11y-10x = ??

posted Apr 24, 2015 by anonymous

+1 vote

Guess me : There's a three digit number which: If you add seven to it it divides exactly by seven;If you add............

posted Apr 23, 2015 by Chahat Sharma

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What is the overall profit or loss in percentage he receive ?

posted Apr 23, 2015 by Karan Joglekar

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If 1st January is Tuesday in a year then number of Sunday between 4th March to 20 September of the same year are .....?

posted Apr 22, 2015 by Divya Bharti

+1 vote

How much money Arun had on first day?

posted Apr 21, 2015 by Anil Chaurasiya

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16% of 16% of 16% of ..............<1, minimum number of 16, which can be used in the following inequality, are.....?

posted Apr 21, 2015 by Basabdatta Mukherjee

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How much will you have to tell your boss that the package for each widget will cost?

posted Apr 19, 2015 by Vikram Luthra

+1 vote

Find at what % above cost price is the marked price ?

posted Apr 18, 2015 by Upma

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12 identical balls are put on 3 identical boxes. What is the probability that one of the box has exactly 3 balls ?

posted Apr 17, 2015 by Amarvansh