The cost of 5 pencils is equal to the cost of 2 ballpoints. Write a linear equation in two variables to represent this statement. ( Take the cost of a pencil to be Rs. x and that of a ballpoint to be Rs. y).
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The manufacturing cost of 10 articles is Rs. 150 Tax on each article is `6%` of the manufacturing cost. Transportation cost comes to Re. 1 per article
Correct Answer - `12(2)/(3)%`
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A manufacturer produces pend and pencils. It takes 1 hour of work on machine A and 2 hours on machine B to produce a package of pens while it take 2 h
Correct Answer - The manufacturer can manufacure 4 packages of each pens and pencils daily to obtain the maximum profit Rs. 28
2 Answers 1 views
Linear momentum depends on frame of reference, but principle of conservation of linear momentum is independent of frame of reference. Why?
Observers in different frame find different values of linear momentum of a system, hence linear momentum depends upon frame of reference, but each would observe that the value of linear...
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(i) Coefficient of linear expansion is same for all substances. (ii) Metals have high values for the coefficient of linear
1. False. Coefficient of linear expansion is different for different substances. 2. True.
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Express the following statement as a linear equation in two variables. ‘The sum of two numbers is 24″.
Correct option is (C) x + y = 24 Let both numbers are x and y. \(\therefore\) Their sum = x+y \(\therefore\) x + y = 24 \((\because\) Given that sum of both numbers is 24)
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Express the following statement as a linear equation in two variables. ‘The sum of two numbers is 24″.
2 Answers
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If the age of ‘x’ is 4 times of the age of ‘y’ then represent the information as a linear equation in two variables is….
Correct option is (A) x = 4y Given that age of x is 4 times of the age of y. \(\therefore\) x = 4y will represent the information.
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If the age of ‘x’ is 4 times of the age of ‘y’ then represent the information as a linear equation in two variables is….
2 Answers
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From the linear equation F = 9/5 C + 32, the equal temperature (in Fahren Heat) to 30°C is
Correct option is D) 86°
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3 (x – 5) = 8x – 6. In this equation the number of variables are ………………
Correct option is (C) 1 x is only variable in given equation.
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