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  • Question
  • Arrange four nines(9) and a one(1) and only one mathematical symbol to make it equal to 100 ?

  • Correct Answer
  • 199 - 99 = 100 

  • Math Puzzles problems

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    • 1. Puzzle : Clock Divide the clock's face into three equal parts exactly with two lines. Therefore the sum of the numbers in the three equal parts should be same
    • Discuss
    • 2. Two Fathers and Two Sons Riddle Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. The riddle is for you to explain how
    • Discuss
    • 3. If A is substituted by 4, B by 3, C by 2, D by 4, E by 3, F by 2 and so on, then what will be total of the numerical values of the letters of the word SICK?

    • Options
    • A. 11
    • B. 12
    • C. 10
    • D. 9
    • Discuss
    • 4. What can go up a chimney down, but cannot go down a chimney up?
    • Discuss
    • 5. What has 3 feet but cannot walk?
    • Discuss
    • 6. Which number multiplied by itself will give the output as 12345678987654321 ?
    • Discuss
    • 7. How many letters of the word FAINTS, will their order in the word and that when the letters are arranged in the alphabetical order, remain the same?

    • Options
    • A. Two
    • B. One
    • C. Three
    • D. Nil
    • Discuss
    • 8. Solve the following puzzle You are going to visit your grandmother on Mother's day. You want to give her two cakes. However, to get to her house you must cross seven bridges. At each bridge is a troll who demands ½ of all of your cakes as the price to pass. However, this troll, being a nice troll, feels bad and gives you back 1 of the cakes that he took. The puzzle to solve: How many cakes must you leave with to be able to give your grandmother 2 cakes
    • Discuss
    • 9. A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height. Two faces measuring 4 cm x 1 cm are coloured in black. Two faces measuring 6 cm x 1 cm are coloured in red. Two faces measuring 6 cm x 4 cm are coloured in green. The block is divided into 6 equal cubes of side 1 cm (from 6 cm side), 4 equal cubes of side 1 cm(from 4 cm side). How many cubes will have green colour on two sides and rest of the four sides having no colour ?

    • Options
    • A. 8
    • B. 24
    • C. 16
    • D. 4
    • Discuss
    • 10. Puzzle : Identical Balls There are 8 identical balls. In that one of the ball is overweight. There are only two chances to weigh in the weighing machine. How to find the overweight ball?
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