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Class 8 Exam  >  Class 8 Tests  >  Olympiad Test: Exponents And Powers -1 - Class 8 MCQ

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


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20 Questions MCQ Test - Olympiad Test: Exponents And Powers -1

Olympiad Test: Exponents And Powers -1 for Class 8 2024 is part of 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.
Solutions of Olympiad Test: Exponents And Powers -1 questions in English are available as part of our course for Class 8 & Olympiad Test: Exponents And Powers -1 solutions in Hindi for Class 8 course. Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free. Attempt Olympiad Test: Exponents And Powers -1 | 20 questions in 40 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study for Class 8 Exam | Download free PDF with solutions
Olympiad Test: Exponents And Powers -1 - Question 1
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What is the value of [(5- 1 × 3-1 ) -1 ÷ 6 - 1 ] ?

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Olympiad Test: Exponents And Powers -1 - Question 2
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​What is the value of 

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Olympiad Test: Exponents And Powers -1 - Question 3
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What is the value of p for which

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2p – 1 = - 3
⇒ 2p = - 2
⇒ p = -1

Olympiad Test: Exponents And Powers -1 - Question 4
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If 52x + 1 ÷ 25 = 125. What is the value of x?
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Olympiad Test: Exponents And Powers -1 - Question 5
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By what number should be divided so that the quotient is ?
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Let the number be x.

x = -3/2 

Olympiad Test: Exponents And Powers -1 - Question 6
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What is the value of ?
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We have 

Olympiad Test: Exponents And Powers -1 - Question 7
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What is the value of ?
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Olympiad Test: Exponents And Powers -1 - Question 8
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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
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By what number should (-6)-1 be multiplied so that the product becomes 9-1?
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(- 6)-1 × x = 9-1

Olympiad Test: Exponents And Powers -1 - Question 10
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What is the standard form of 0.00000000837?
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We have 0.00000000837 =  

Olympiad Test: Exponents And Powers -1 - Question 11
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What is the value of x for which. 
Olympiad Test: Exponents And Powers -1 - Question 12
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The value of (3-1 + 4-1)-1 ÷ 5-1 =?
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Here (3-1 + 4-1)-1 ÷ 5-1

Olympiad Test: Exponents And Powers -1 - Question 13
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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
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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
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If , Find x?
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Olympiad Test: Exponents And Powers -1 - Question 16
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​What will be the value of , where x = - 0.5?
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Olympiad Test: Exponents And Powers -1 - Question 17
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Express 1 micron in standard form.​
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Olympiad Test: Exponents And Powers -1 - Question 18
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​The value of  is :
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Olympiad Test: Exponents And Powers -1 - Question 19
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If 52p + 5p + 50 = 651, then p =
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Olympiad Test: Exponents And Powers -1 - Question 20
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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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