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Home Aptitude Cubes and Dice Comments

  • Question
  • Four usual dice are thrown on the ground. The total of numbers on the top faces of these four dice is 13 as the top faces showed 4, 3, 1 and 5 respectively. What is the total of the faces touching the ground?


  • Options
  • A. 12
  • B. 13
  • C. 15
  • D. Cannot be determined

  • Correct Answer
  • 15 

    Explanation

    In a usual dice, the sum of the numbers on any two opposite faces is always 7. Thus, 1 is opposite 6, 2 is opposite 5 and 3 is opposite 4.

     

    Consequently, when 4, 3, 1 and 5 are the numbers on the top faces, then 3, 4, 6 and 2 respectively are the numbers on the face touching the ground. The total of these numbers = 3 + 4 + 6 + 2 = 15.


  • Search Results


    • 1. A dice is numbered from 1 to 6 in different ways. If 1 is adjacent to 2, 4 and 6, then which of the following statements is necessarily true?

    • Options
    • A. 2 is opposite to 6
    • B. 1 is adjacent to 3
    • C. 3 is adjacent to 5
    • D. 3 is opposite to 5
    • Discuss
    • 2. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn find the probability the card drawn is red.

    • Options
    • A. 2/3
    • B. 1/2
    • C. 1/52
    • D. 13/51
    • Discuss
    • 3. A fair coin is tossed 11 times. What is the probability that only the first two tosses will yield heads ?

    • Options
    • A. (1/2)^11
    • B. (9)(1/2)
    • C. (11C2)(1/2)^9
    • D. (1/2)
    • Discuss
    • 4. A number is selected at random from the numbers 1 to 30. What is the probability that it is divisible by either 3 or 7 ?

    • Options
    • A. 1/30
    • B. 2/30
    • C. 1/25
    • D. 1/2
    • Discuss
    • 5. A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?

    • Options
    • A. 1/6
    • B. 1/3
    • C. 1/2
    • D. 1/4
    • Discuss
    • 6. A dice is numbered from 1 to 6 in different ways. If 1 is adjacent to 2, 3 and 5, then which of the following statements is necessarily true?

    • Options
    • A. 4 is adjacent to 6
    • B. 2 is adjacent to 5
    • C. 1 is adjacent to 6
    • D. 1 is adjacent to 4
    • Discuss
    • 7. A cube is painted blue on two adjacent surfaces and black on the surfaces opposite to blue surfaces and green on the remaining faces .Now the cube is cut into 216 smaller cubes of equal size.

    • Options
    • A. 56
    • B. 48
    • C. 32
    • D. 64
    • Discuss
    • 8. A dice is numbered from 1 to 6 in different ways. If 1 is opposite to 5 and 2 is opposite to 3, then

    • Options
    • A. 4 is adjacent to 3 and 6
    • B. 2 is adjacent to 4 and 6
    • C. 4 is adjacent to 5 and 6
    • D. 6 is adjacent to 3 and 4
    • Discuss
    • 9. A picture is copied onto a sheet of paper 8.5 inches by 10 inches. A 1.5 inch margin is left all around. What area in square inches does the picture cover?

    • Options
    • A. 76
    • B. 35
    • C. 49
    • D. 38.5
    • Discuss
    • 10. Tea worth of Rs. 135/kg & Rs. 126/kg are mixed with a third variety in the ratio 1: 1 : 2. If the mixture is worth Rs. 153 per kg, the price of the third variety per kg will be____?

    • Options
    • A. Rs. 169.50
    • B. Rs.1700
    • C. Rs. 175.50
    • D. Rs. 180
    • Discuss


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