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Raavi Tiwari
@raavi-tiwari
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Joined: May 7, 2021
Last seen: Jun 14, 2021
Topics: 0 / Replies: 2064
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Answer to: Find two consecutive positive integers, sum of whose squares is 365.

Let us say, the two consecutive positive integers be x and x + 1. Therefore, as per the given questions, x2 + (x + 1)2 = 365 ⇒ x2 + x2 + 1 + 2x ...

4 years ago
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Answer to: Find two numbers whose sum is 27 and product is 182.

First number be x and Second number is 27 – x. Therefore, the product of two numbers x(27 – x) = 182 ⇒ x2 – 27x – 182 = 0 ⇒ x2 – 13x – 14x + 1...

4 years ago
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Answer to: A cottage industry produces a certain number of toys in a day. The cost of production of each toy (in rupees) was found to be 55 minus the number of toys produced in a day.

Let us say, number of toys produced in a day be x. Therefore, cost of production of each toy = Rs(55 – x) Given, total cost of production of the t...

4 years ago
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Answer to: John and Jivanti together have 45 marbles. Both of them lost 5 marbles each, and the product of the number of marbles they now have is 124. We would like to find out how many marbles they had to start with.

Let us say, the number of marbles John have = x. Therefore, number of marble Jivanti have = 45 – x After losing 5 marbles each, Number of marble...

4 years ago
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Answer to: (i) √2 x^2 + 7x + 5√2 = 0 (ii) 2x^2 – x +1/8 = 0 (iii) 100x^2 – 20x + 1 = 0

(i) √2 x2 + 7x + 5√2=0 Taking LHS, => √2 x2 + 5x + 2x + 5√2 => x (√2x + 5) + √2(√2x + 5)= (√2x + 5)(x + √2) The roots of this equation, ...

4 years ago
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Answer to: Find the roots of the following quadratic equations by factorisation: (i) x^2 – 3x – 10 = 0 (ii) 2x^2 + x – 6 = 0

(i) Given, x2 – 3x – 10 =0 Taking LHS, =>x2 – 5x + 2x – 10 =>x(x – 5) + 2(x – 5) =>(x – 5)(x + 2) The roots of this equation, x2 – ...

4 years ago
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Answer to: A train travels a distance of 480 km at a uniform speed. If the speed had been 8 km/h less, then it would have taken.

The speed of train = x km/h Time taken to travel 480 km = 480/x km/hr As per second condition, the speed of train = (x – 8) km/h Also given, th...

4 years ago
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Answer to: Rohan’s mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan’s present age.

Let us consider, Age of Rohan’s = x years Rohan’s mother’s age = x + 26 After 3 years, Age of Rohan’s = x + 3 Age of Rohan’s mother will be...

4 years ago
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Answer to: The product of two consecutive positive integers is 306. We need to find the integers.

Let us consider, The first integer number = x Thus, the next consecutive positive integer will be = x + 1 Product of two consecutive integers = ...

4 years ago
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Answer to: The area of a rectangular plot is 528 m^2. The length of the plot (in metres) is one more than twice its breadth. We need to find the length and breadth of the plot.

Breadth of the rectangular plot = x m Thus, the length of the plot = (2x + 1) m. we know, Area of rectangle = length × breadth = 528 m2 Puttin...

4 years ago
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Answer to: (i) (x + 2)^3 = 2x (x^2 – 1) (ii) x^3 – 4x^2 – x + 1 = (x – 2)^3

(i) Given, (x + 2)3 = 2x(x2 – 1) By using the formula for (a + b)2 = a2+ 2ab+b2 ⇒ x3 + 8 + x2 + 12x = 2x3 – 2x ⇒ x3 + 14x – 6x2 – 8 = 0 Since ...

4 years ago
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Answer to: (i) (2x – 1)(x – 3) = (x + 5)(x – 1) (ii) x^2 + 3x + 1 = (x – 2)^2

(i) Given, (2x – 1)(x – 3) = (x + 5)(x – 1) By using the formula for (a + b)2 = a2+2ab+b2 ⇒ 2x2 – 7x + 3 = x2 + 4x – 5 ⇒ x2 – 11x + 8 = 0 Sinc...

4 years ago
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Answer to: (i) (x – 2)(x + 1) = (x – 1)(x + 3) (ii) (x – 3)(2x +1) = x(x + 5)

(i) Given, (x – 2)(x + 1) = (x – 1)(x + 3) By using the formula for (a + b)2 = a2+2ab+b2 ⇒ x2 – x – 2 = x2 + 2x – 3 ⇒ 3x – 1 = 0 Since the abo...

4 years ago
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Answer to: What measures were taken by the British after issuing of Wood’s Despatch?

Following measures were taken: Education departments of the government were set up to extend control over all matters regarding education. A syst...

4 years ago
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Answer to: What measures were taken by the English Education Act of 1835?

The following measures were taken under the English Education Act 1835: English was made the medium of instruction for higher education. Promotio...

4 years ago
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Answer to: Define the term ‘vernacular’. Why did the British use this term in colonial countries like India?

The term 'Vernacular’ refers to a local language or dialect as distinct from what is known as the standard language. In colonial countries like Indi...

4 years ago
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Answer to: What were the views of other Company officials?

Other Company officials did not approve the ideas of the Orientalists. They began to criticise the Orientalist- vision of learning. They saved that th...

4 years ago
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Answer to: Why did many Company officials in India want to promote Indian rather than Western learning?

Many Company officials felt that institutions should be set up to encourage the study of ancient Indian texts and teach Sanskrit and Persian literatur...

4 years ago
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Answer to: How did Tagore view his school namely Shantmiketan?

He viewed his school as an abode of peace where living in harmony with nature, children would cultivate their natural creativity.

4 years ago
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Answer to: What do you mean by Tagore’s abode of peace?

Tagore’s Shantmiketan was established in a rural setting, 100 kilometres away from Calcutta. As it was far from the din and bustle of the city it was ...

4 years ago
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