Tag: math & puzzles

Questions Related to math & puzzles

Use the formula ALL FROM 9 AND THE LAST FROM 10 to perform instant subtractions. 1000 - 357 = ?
general knowledge math & puzzles

  1. 643

  2. 623

  3. 633

  4. 653

Show answer
Correct Option: A

Multiplying numbers just over 100. 103 x 104 = ?

general knowledge math & puzzles

  1. 10752

  2. 9752

  3. 10712

  4. 9712

Show answer
Correct Option: C

AI Explanation

To multiply numbers just over 100, you can use the distributive property of multiplication. Let's break down the multiplication:

103 x 104 = (100 + 3) x (100 + 4)

To simplify this, you can use the distributive property:

(100 + 3) x (100 + 4) = (100 x 100) + (100 x 4) + (3 x 100) + (3 x 4)

= 10000 + 400 + 300 + 12

= 10712

Therefore, the correct answer is C) 10712.

Find out the wrong number in the following sequence: 56,72,90,110,132,150

general knowledge math & puzzles

  1. 72

  2. 110

  3. 132

  4. 150

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Correct Option: D

Find out the wrong number in sequence 2807,1400,697,347,171,84,41,20
general knowledge math & puzzles

  1. 697

  2. 347

  3. 171

  4. 41

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Correct Option: B

Find out wrong number in the sequence 3,8,18,46,100,210,432
general knowledge math & puzzles

  1. 8

  2. 18

  3. 46

  4. 100

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Correct Option: B

Find out wrong number in sequence 105,85,60,30,0,-45,-90
general knowledge math & puzzles

  1. 0

  2. 85

  3. -45

  4. 60

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Correct Option: A

Find out wrong number in sequence 19,26,33,46,59,74,91
general knowledge math & puzzles

  1. 26

  2. 33

  3. 46

  4. 59

  5. 74

Show answer
Correct Option: B

What is the result of - Lt tan x x->pi/2

general knowledge math & puzzles

  1. infinity

  2. 0

  3. 1

  4. invalid limit

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Correct Option: D

x² /a² - y²/b² = 1 is the equation of a hyperbola. When |x| is very high the graph for the above equation resembles –
general knowledge math & puzzles

  1. cycloid

  2. parabola

  3. ellipse

  4. straight line

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Correct Option: D

Two trains are 150 miles apart approaching each other at 60 mph and 90 mph respectively. A fly sitting on one train starts flying from it reaches the second train and immediately turns back and flies back to the first train,and turns around again. It goes on flying back and forth until the two trains collide. If the speed of the fly is 130 miles per hour, how much distance did it flied?
general knowledge math & puzzles

  1. 150 miles

  2. 125 miles

  3. 120 miles

  4. 130 miles

Show answer
Correct Option: D