Recent puzzles under tag mathematical

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A number ABCD times 4 equals DCBA. Each letter is a different digit from 0 to 9. What is the value of each letter?

posted Oct 9, 2023 by Saif Khanam

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Why does the second shape have an open block when the first shape does not?

posted Oct 9, 2023 by Tapesh Kulkarni

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Determine the largest number that is the product of positive integers whose sum is 1976.

posted Oct 6, 2023 by Kuldeep Apte

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If you donate to a charity on a credit card, you might get asked to add a small amount to cover the credit card.........

posted Oct 6, 2023 by Karan Joglekar

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For what real value of x is......

posted Oct 6, 2023 by Aastha Joshi

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Anu is late to a meeting in progress. After she joins the room, the average age of all people in the room increases.....

posted Sep 29, 2023 by Nimish

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Consider a list of numbers where the integer n appears for n times, 1 ≤ n ≤ 200. 1, 2, 2, 3, 3, 3, 4, 4, 4, 4..........

posted Sep 29, 2023 by Atif

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We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know exc

posted Sep 26, 2023 by Prithvi

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In an Art Gallary, When the clock hit 11 am, Artist hung the painting number 30. When it struck 4 pm, he hung..........

posted Sep 26, 2023 by Varun Kumar

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Suppose a stock decreases 10% in year one and increases by 10% in year two. The stock does not pay any dividends........

posted Sep 21, 2023 by Puneet Batra

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What is the value of x?

posted Sep 21, 2023 by Sidharth Malhotra

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If x + y = 12, what is the minimum value of: √(4 + x2) + √(9 + y2)

posted Sep 21, 2023 by Amarvansh

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Can you solve the below geometrical problem?

posted Sep 14, 2023 by Tapesh Kulkarni

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If pentagons have five sides, octagons have 8 sides, decagons have 10 sides and hexagons have 6. How many sides does....

posted Sep 6, 2023 by Vishal

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What’s the correct answer?

posted Sep 6, 2023 by Mohammad

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Find the simple rule that creates this series.

posted Sep 4, 2023 by Riteshwar

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A square with side length 1 is divided into 4 congruent right triangles, as shown, and a square in the center..........

posted Sep 4, 2023 by Kapil Kapoor

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A circle circumscribed 5 squares with side length 1, as shown below. (The squares are in a 2×2 grid and one circle......

posted Aug 30, 2023 by Harshita Dhaliwal

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Let ABC be an equilateral triangle. Let P be any point on its incircle. Prove that: AP2 + BP2 + CP2 = k for some.......

posted Aug 18, 2023 by Saif Khanam

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What is the distance OP you should stand that maximizes the viewing angle APB?

posted Aug 10, 2023 by Pushpak Chauhan

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Why are the results different? What’s going on?

posted Aug 10, 2023 by Anuradha Tabyal

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Three identical squares are shown in the diagram. If the area of the triangle is 1 square meter, what is the area.......

posted Aug 1, 2023 by Anshika Utadi

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A lane runs perpendicular to a road that is 64 feet wide. It is just possible to carry a pole 125 feet long...........

posted Jul 31, 2023 by Riteshwar

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Complete the following series. 1, 3, 7, 13, 21, 31, ?, ?

posted Jul 26, 2023 by Varuna Magar

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Use 4 4's and only 4 4's along with any mathematical operators to make a total of 112.

posted Jul 24, 2023 by Amarvansh

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Every student at Ranmore College selected one language (French or Mandarin) and one science subject..............

posted Jul 24, 2023 by Chahat Sharma

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How many days does the job take when Ali and Baba work together?

posted Jul 21, 2023 by Brijesh Talwar

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Find the missing number in the image below.

posted Jul 17, 2023 by Swati Arora

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The line 2x – y + 1 = 0 intersects the curve x2 + 3y = 19 at the points A and B. The perpendicular bisector of AB......

posted Jul 15, 2023 by Vishal

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You have 7 tennis balls that are all identical but one of them is slightly lighter than the others. Using a balance....

posted Jul 12, 2023 by Varun Kumar

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Can you spot the mistake?

posted Jul 11, 2023 by Varuna Magar

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Can you figure it out?

posted Jul 7, 2023 by Sidharth Malhotra

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On my birthday in 2021, my age is equal to the sum of the digits of my birth year. I am less than 100 years old.........

posted Jul 7, 2023 by Amarvansh

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A 110 yard long Christmas train travels at 30 mph, through a tunnel, into Santa’s grotto. If the length.............

posted Jul 6, 2023 by Saif Khanam

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Can you solve the following visual puzzle?

posted Jul 4, 2023 by Nikita Sehgal

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The product of three consecutive numbers is 7980. Then the sum of these consecutive numbers would be?

posted Jul 3, 2023 by Yogeshwar Thakur

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John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back......

posted Jul 3, 2023 by Rahul Vaidya

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There is a box. The area of its top is 240 square units, the area of the front is 300 square units and the area.........

posted Jun 30, 2023 by Dilbagh

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Solve the following equation: (3x)log 3 = (4x)log 4 The variable x is a real number, and the exponentiation..........

posted Jun 29, 2023 by Vishal

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My grandson is about as many days as my son is weeks. And my grandson is as many months as I am in years..........

posted Jun 29, 2023 by Atif

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When multiplied by itself, which number is equal to 12,345,678,987,654,321?

posted Jun 28, 2023 by Deepak Chitragar

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If, 6 / 7 = 2 3 / 9 = 7 8 / 2 = 6 Then 4 / 5 = ?

posted Jun 27, 2023 by Akriti

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Solve the below puzzle by replacing the question mark with the correct number. 3 6 12; 4 8 16; 5 10 ?

posted Jun 26, 2023 by Ritika

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Can you find an eight digit number with the following property. The first digit tells you how many zeros there are......

posted Jun 26, 2023 by Vikram Luthra

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In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points........

posted Jun 22, 2023 by Pardeep Kohli

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There are 168 primes less than 1,000. What is the sum of the prime numbers less than 1,000?

posted Jun 22, 2023 by Ujjwal Mehra

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Use 4 4's and only 4 4's along with any mathematical operators to make a total of 28.

posted Jun 22, 2023 by Pankaj Deshmukh

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There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces..........

posted Jun 19, 2023 by Aastha Joshi

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Solve the following equation:

posted Jun 15, 2023 by Mishthy Mukherjee

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Today I Learned that the number 69 is the only natural number whose square (4761) and cube (328509) contains every......

posted Jun 14, 2023 by Prachi Sharma