All Courses
Get the App Signup / Login
Sign in Open App
JAMB Exam  >  JAMB Tests  >  Test: Variation - 2 - JAMB MCQ

Test: Variation - 2 - JAMB MCQ


Test Description

10 Questions MCQ Test - Test: Variation - 2

Test: Variation - 2 for JAMB 2024 is part of JAMB preparation. The Test: Variation - 2 questions and answers have been prepared according to the JAMB exam syllabus.The Test: Variation - 2 MCQs are made for JAMB 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Variation - 2 below.
Solutions of Test: Variation - 2 questions in English are available as part of our course for JAMB & Test: Variation - 2 solutions in Hindi for JAMB course. Download more important topics, notes, lectures and mock test series for JAMB Exam by signing up for free. Attempt Test: Variation - 2 | 10 questions in 8 minutes | Mock test for JAMB preparation | Free important questions MCQ to study for JAMB Exam | Download free PDF with solutions
Test: Variation - 2 - Question 1
Save

If y varies directly with x and y = 10 when x = 5, what is the value of y when x = 8?

Detailed Solution for Test: Variation - 2 - Question 1

Since y varies directly with x, we can use the formula y = kx, where k is the constant of variation. To find k, we can use the given values: 10 = k * 5, which gives us k = 2. Now, we can substitute x = 8 into the formula to find y: y = 2 * 8 = 16.

Test: Variation - 2 - Question 2
Save

If y varies inversely with the square of x and y = 6 when x = 2, what is the value of y when x = 4?

Detailed Solution for Test: Variation - 2 - Question 2

If y varies inversely with the square of x, we can use the formula y = k/x2, where k is the constant of variation. To find k, we can use the given values: 6 = k/(22), which gives us k = 24. Now, we can substitute x = 4 into the formula to find y: y = 24/(42) = 3.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Variation - 2 - Question 3
Save

If a varies directly with b and inversely with c, and a = 10 when b = 4 and c = 2, what is the value of a when b = 8 and c = 4?

Detailed Solution for Test: Variation - 2 - Question 3

Since a varies directly with b and inversely with c, we can use the formula a = (k * b) / c, where k is the constant of variation. To find k, we can use the given values: 10 = (k * 4) / 2, which gives us k = 5. Now, we can substitute b = 8 and c = 4 into the formula to find a: a = (5 * 8) / 4 = 20.

Test: Variation - 2 - Question 4
Save

If y varies directly as the square of x and y = 25 when x = 5, what is the value of y when x = 10?
Detailed Solution for Test: Variation - 2 - Question 4

Since y varies directly as the square of x, we can use the formula y = kx2, where k is the constant of variation. To find k, we can use the given values: 25 = k * 52, which gives us k = 1. Now, we can substitute x = 10 into the formula to find y: y = 1 * 102 = 100.

Test: Variation - 2 - Question 5
Save

If y varies directly as the cube of x and y = 64 when x = 2, what is the value of y when x = 3?
Detailed Solution for Test: Variation - 2 - Question 5

Since y varies directly as the cube of x, we can use the formula y = kx3, where k is the constant of variation. To find k, we can use the given values: 64 = k * 23, which gives us k = 4. Now, we can substitute x = 3 into the formula to find y: y = 4 * 33 = 72.

Test: Variation - 2 - Question 6
Save

If y varies inversely with x and y = 15 when x = 5, what is the value of y when x = 10?
Detailed Solution for Test: Variation - 2 - Question 6

If y varies inversely with x, we can use the formula y = k/x, where k is the constant of variation. To find k, we can use the given values: 15 = k/5, which gives us k = 75. Now, we can substitute x = 10 into the formula to find y: y = 75/10 = 7.5.

Test: Variation - 2 - Question 7
Save

If y varies directly as the square root of x and y = 4 when x = 16, what is the value of y when x = 9?
Detailed Solution for Test: Variation - 2 - Question 7

Since y varies directly as the square root of x, we can use the formula y = k√x, where k is the constant of variation. To find k, we can use the given values: 4 = k√16, which gives us k = 1. Now, we can substitute x = 9 into the formula to find y: y = 1√9 = 3.

Test: Variation - 2 - Question 8
Save

If y varies directly as the cube root of x and y = 10 when x = 27, what is the value of y when x = 64?
Detailed Solution for Test: Variation - 2 - Question 8

Since y varies directly as the cube root of x, we can use the formula y = k∛x, where k is the constant of variation. To find k, we can use the given values: 10 = k∛27, which gives us k = 10/3. Now, we can substitute x = 64 into the formula to find y: y = (10/3)∛64 ≈ 15.

Test: Variation - 2 - Question 9
Save

If y varies inversely with the cube root of x and y = 20 when x = 8, what is the value of y when x = 27?
Detailed Solution for Test: Variation - 2 - Question 9

If y varies inversely with the cube root of x, we can use the formula y = k/∛x, where k is the constant of variation. To find k, we can use the given values: 20 = k/∛8, which gives us k = 20∛8. Now, we can substitute x = 27 into the formula to find y: y = (20∛8)/∛27 ≈ 10.

Test: Variation - 2 - Question 10
Save

If y varies directly with x and inversely with z, and y = 12 when x = 4 and z = 3, what is the value of y when x = 8 and z = 6?
Detailed Solution for Test: Variation - 2 - Question 10

Since y varies directly with x and inversely with z, we can use the formula y = (k * x) / z, where k is the constant of variation. To find k, we can use the given values: 12 = (k * 4) / 3, which gives us k = 9. Now, we can substitute x = 8 and z = 6 into the formula to find y: y = (9 * 8) / 6 = 12.

Information about Test: Variation - 2 Page
In this test you can find the Exam questions for Test: Variation - 2 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Variation - 2, EduRev gives you an ample number of Online tests for practice

Top Courses for JAMB

Download as PDF

Top Courses for JAMB

Important Questions for Variation - 2

Find all the important questions for Variation - 2 at EduRev.Get fully prepared for Variation - 2 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the Variation - 2 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of Variation - 2 resources.

Variation - 2 MCQs with Answers

Prepare for the Variation - 2 within the JAMB exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for Variation - 2

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace Variation - 2 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup