Class 8 > National Cyber Olympiad Class 8 > Olympiad Test: Mathematical Reasoning - 1

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Olympiad Test: Mathematical Reasoning - 1 for Class 8 2023 is part of National Cyber Olympiad Class 8 preparation. The Olympiad Test: Mathematical Reasoning - 1 questions and answers have been
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Olympiad Test: Mathematical Reasoning - 1 - Question 1

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on the given information.

Q. 9 ÷ 5 + 4 - 3 x 2 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 2

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on the given information.

Q. 6 + 7 x 3 - 8 ÷ 20 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 3

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on the given information.

Q. 3 x 2 + 4 - 2 ÷ 9 = ?

Detailed Solution for Olympiad Test: Mathematical Reasoning - 1 - Question 3

By puting values equation = 3 ÷ 2 × 4 + 2 - 9

= 3 ÷ 8 + 2 - 9

= 3 ÷ 10 - 9

= 3 ÷ 1

= 3

Answer is 3.

Olympiad Test: Mathematical Reasoning - 1 - Question 4

Q. 6 - 9 + 8 x 3 ÷ 20 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 5

Q. 5 × 4 − 6 ÷ 3 + 1 = ?

Detailed Solution for Olympiad Test: Mathematical Reasoning - 1 - Question 5

After Substitution, We can write it as:

5 / 4 + 6 - 3 * 1

= 1.25 + 6 - 3

= 7.25 - 3

= 4.25

Olympiad Test: Mathematical Reasoning - 1 - Question 6

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on this information.

Q. 15 × 5 ÷ 3 + 1 - 1 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 7

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on this information.

Q. 9 - 3 + 2 ÷ 16 x 2 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 8

If ‘+’ is ‘x’, ‘-’ is ‘+’, ‘x’ is ‘÷’ and ‘÷’ is ‘-’, then answer the following questions based on this information.

Q. 21 ÷ 8 + 2 - 12 x 3 = ?

Olympiad Test: Mathematical Reasoning - 1 - Question 9

Correct the following equations by interchanging the two signs:

Q. 51 ÷ 3 x 12 - 6 + 3 = 11

Olympiad Test: Mathematical Reasoning - 1 - Question 10

Correct the following equations by interchanging the two signs:

Q. 3 - 9 x 27 + 9 ÷ 3 = 3

Olympiad Test: Mathematical Reasoning - 1 - Question 11

Correct the following equations by interchanging the two signs:

Q. 15 ÷ 9 x 3 - 74 + 2 = 5

Olympiad Test: Mathematical Reasoning - 1 - Question 12

Q. Three friends had dinner at a restaurant. When the bill was received, Amita paid 2/3 as much as Veena paid and Veena paid 1/2 as much as Tanya paid. What faction of the bill did Veena pay?

Olympiad Test: Mathematical Reasoning - 1 - Question 13

In each of the following questions, a number series is given with one term missing. Choose the correct alternative that will continue the same pattern and fill in the blank spaces.

2, 7, 14, 23, –, 47

Olympiad Test: Mathematical Reasoning - 1 - Question 14

Which number must be added to 6, 16 and 8 to get an average of 13?

Olympiad Test: Mathematical Reasoning - 1 - Question 15

A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?

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