Scroll:Mental Sums >> Mental Sums >> mcq (2525)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

How many 40° angles are there in 19 of a complete turn






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2)  

How many 45° angles are there in 18 of a complete turn






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3)  

How many 30° angles are there in a complete turn






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4)  

How many 45° angles are there in 58 of a complete turn






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5)  

How many 30° angles are there in 712 of a complete turn






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6)  

How many 45° angles are there in 38 of a complete turn






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7)  

How many 40° angles are there in 49 of a complete turn






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8)  

How many 30° angles are there in 12 of a complete turn






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9)  

How many 30° angles are there in 1112 of a complete turn






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10)  

How many 30° angles are there in 16 of a complete turn






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1)  

How many 40° angles are there in 19 of a complete turn





Answer: 1


SOLUTION 1 :

Step 1: 19 x 360° = 40°

Step 2: 40° ÷ 40° = 1

There is 1 40° angle.



2)  

How many 45° angles are there in 18 of a complete turn





Answer: 4


SOLUTION 1 :

Step 1: 18 x 360° = 45°

Step 2: 45° ÷ 45° = 1

There is 1 45° angle.



3)  

How many 30° angles are there in a complete turn





Answer: 1


SOLUTION 1 :

360° ÷ 30° = 12

There are 12 30° angles.



4)  

How many 45° angles are there in 58 of a complete turn





Answer: 4


SOLUTION 1 :

Step 1: 58 x 360° = 225°

Step 2: 225° ÷ 45° = 5

There are 5 45° angles.



5)  

How many 30° angles are there in 712 of a complete turn





Answer: 3


SOLUTION 1 :

Step 1: 712 x 360° = 210°

Step 2: 210° ÷ 30° = 7

There are 7 30° angles.



6)  

How many 45° angles are there in 38 of a complete turn





Answer: 1


SOLUTION 1 :

Step 1: 38 x 360° = 135°

Step 2: 135° ÷ 45° = 3

There are 3 45° angles.



7)  

How many 40° angles are there in 49 of a complete turn





Answer: 4


SOLUTION 1 :

Step 1: 49 x 360° = 160°

Step 2: 160° ÷ 40° = 4

There are 4 40° angles.



8)  

How many 30° angles are there in 12 of a complete turn





Answer: 1


SOLUTION 1 :

Step 1: 12 x 360° = 180°

Step 2: 180° ÷ 30° = 6

There are 6 30° angles.



9)  

How many 30° angles are there in 1112 of a complete turn





Answer: 2


SOLUTION 1 :

Step 1: 1112 x 360° = 330°

Step 2: 330° ÷ 30° = 11

There are 11 30° angles.



10)  

How many 30° angles are there in 16 of a complete turn





Answer: 2


SOLUTION 1 :

Step 1: 16 x 360° = 60°

Step 2: 60° ÷ 30° = 2

There are 2 30° angles.