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Olympiad Test: Exponents And Powers -1 - Class 8 MCQ


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20 Questions MCQ Test Mathematical Olympiad Class 8 - Olympiad Test: Exponents And Powers -1

Olympiad Test: Exponents And Powers -1 for Class 8 2024 is part of Mathematical Olympiad Class 8 preparation. The Olympiad Test: Exponents And Powers -1 questions and answers have been prepared according to the Class 8 exam syllabus.The Olympiad Test: Exponents And Powers -1 MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Exponents And Powers -1 below.
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Olympiad Test: Exponents And Powers -1 - Question 1

What is the value of [(5- 1 × 3-1 ) -1 ÷ 6 - 1 ] ?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 1

Olympiad Test: Exponents And Powers -1 - Question 2

​What is the value of 

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 2


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Olympiad Test: Exponents And Powers -1 - Question 3

What is the value of p for which

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 3


2p – 1 = - 3
⇒ 2p = - 2
⇒ p = -1

Olympiad Test: Exponents And Powers -1 - Question 4

If 52x + 1 ÷ 25 = 125. What is the value of x?

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Olympiad Test: Exponents And Powers -1 - Question 5

By what number should be divided so that the quotient is ?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 5

Let the number be x.

x = -3/2 

Olympiad Test: Exponents And Powers -1 - Question 6

What is the value of ?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 6

We have 

Olympiad Test: Exponents And Powers -1 - Question 7

What is the value of ?

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Olympiad Test: Exponents And Powers -1 - Question 8

By what number should  be multiplied so that the product is ?

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Let the number be x.

Olympiad Test: Exponents And Powers -1 - Question 9

By what number should (-6)-1 be multiplied so that the product becomes 9-1?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 9

(- 6)-1 × x = 9-1

Olympiad Test: Exponents And Powers -1 - Question 10

What is the standard form of 0.00000000837?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 10

We have 0.00000000837 =  

Olympiad Test: Exponents And Powers -1 - Question 11

What is the value of x for which. 

Olympiad Test: Exponents And Powers -1 - Question 12

The value of (3-1 + 4-1)-1 ÷ 5-1 =?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 12

Here (3-1 + 4-1)-1 ÷ 5-1

Olympiad Test: Exponents And Powers -1 - Question 13

If (23x – 1 + 10) ÷ 7 = 6 then what is the value of x?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 13

Here (23x - 1 + 10) ÷ 7 = 6

On comparing the powers

x = 2

Olympiad Test: Exponents And Powers -1 - Question 14

What is the usual  form of 0.000467 × 104 ?

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 14

0.000467 × 104.

Olympiad Test: Exponents And Powers -1 - Question 15

If , Find x?

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Olympiad Test: Exponents And Powers -1 - Question 16

​What will be the value of , where x = - 0.5?

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Olympiad Test: Exponents And Powers -1 - Question 17

Express 1 micron in standard form.​

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Olympiad Test: Exponents And Powers -1 - Question 18

​The value of  is :

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 18

Olympiad Test: Exponents And Powers -1 - Question 19

If 52p + 5p + 50 = 651, then p =

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 19

Olympiad Test: Exponents And Powers -1 - Question 20

Find the value of k if (-2)k+1 × (-2)3 = (-2)7

Detailed Solution for Olympiad Test: Exponents And Powers -1 - Question 20

Solution:
(-2)k+1 × (-2)3 = (-2)7
⇒ (-2)k+1+3 = (-2)7
⇒ (-2)k+4 = (-2)7
⇒ k + 4 = 7
⇒ k = 3
Hence, k = 3.

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