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MATH-MAGIC Answer the following : (3 mark each)

Toy Joy · CBSE STD 3 (CBSE - English Medium). 2 questions.

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Answer the following : (3 mark each)

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 13 Marks
A die is a cube marked with dots or numbers. Dice is the plural of die. The sum of number on two opposite of a 'standard' dice is always 7.
Image
Based on above information, answer the following questions.
Q.1. Which number is on the face opposite to 6 in dice?
(a) 5$\quad$(b) 4$\quad$(c) 1$\quad$(d) 2
Q.2. Which number is on the face opposite to 2 in dice?
(a) 3$\quad$(b) 5$\quad$(c) 6$\quad$(d) 4
Q.3. Which number is on the face opposite to 3 in dice?
(a) 4$\quad$(b) 5$\quad$(c) 6$\quad$(d) 1
Answer
(1) (c) Since, the numbers on the opposite faces of a die add upto 7.
$\therefore$ Opposite face of 6 is 7 - 6 = 1
(2) (b) Since, the numbers on the opposite faces of a die add upto 7.
$\therefore$ Opposite face of 2 is 7 - 2 = 5
(3) (a) Since, the number on the opposite faces of a die add upto 7.
$\therefore$ Opposite face of 3 is 7 - 3 = 4
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Answer the following : (3 mark each) - MATH-MAGIC STD 3 Questions - Vidyadip