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Raavi Tiwari
@raavi-tiwari
Noble Member
Joined: May 7, 2021
Last seen: Jun 14, 2021
Topics: 0 / Replies: 2064
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Answer to: Who visited the durbar?

Numerous Indian princes and British officers and soldiers visited the durbar.

5 years ago
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Answer to: Why was a durbar held in Delhi in 1911?

In 1911, when King George V was crowned in England, a durbar was held in Delhi to celebrate the occasion.

5 years ago
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Answer to: Where did British live in the 1870s?

They lived in the sprawling Civil Lines area that came up in the north.

5 years ago
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5 years ago
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Answer to: Solve the following pair of linear equations by the substitution and cross-multiplication methods: 8x + 5y = 9 3x + 2y = 4

8x + 5y = 9 …………………..(1) 3x + 2y = 4 ……………….….(2) From equation (2) we get x = (4 – 2y )/ 3 ……………………. (3) Using this value in equation 1, we ...

5 years ago
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Answer to: For which value of k will the following pair of linear equations have no solution? 3x + y = 1 (2k – 1) x + (k – 1) y = 2k + 1

Given, 3x + y -1 = 0 (2k -1)x + (k-1)y – 2k -1 = 0 a1/a2 = 3/(2k -1), b1/b2 = 1/(k-1), c1/c2 = -1/(-2k -1) = 1/(2k +1) For no solutions a1/a...

5 years ago
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Answer to: For which values of a and b does the following pair of linear equations have an infinite number of solutions? 2x + 3y = 7 (a – b) x + (a + b) y = 3a + b – 2

Given, 3y + 2x -7 =0 (a + b)y + (a-b)y – (3a + b -2) = 0 a1/a2 = 2/(a-b), b1/b2 = 3/(a+b), c1/c2 = -7/-(3a + b -2) For infinitely many solutions...

5 years ago
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Answer to: (i) 3x – 5y = 20 and 6x – 10y = 40 (ii) x – 3y – 7 = 0 and 3x – 3y – 15 = 0

(i) Given, 3x – 5y = 20 and 6x – 10y = 40 (a1/a2) = 3/6 = 1/2 (b1/b2) = -5/-10 = 1/2 (c1/c2) = 20/40 = 1/2 a1/a2 = b1/b2 = c1/c2 Since the g...

5 years ago
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Answer to: Which of the following pairs of linear equations has unique solution, no solution, or infinitely many solutions. (i) x – 3y – 3 = 0 and 3x – 9y – 2 = 0 (ii) 2x + y = 5 and 3x + 2y = 8

(i) Given, x – 3y – 3 =0 and 3x – 9y -2 =0 a1/a2 = 1/3, b1/b2 = -3/-9 = 1/3, c1/c2 =-3/-2 = 3/2 (a1/a2) = (b1/b2) ≠ (c1/c2) Since, the given set...

5 years ago
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Answer to: Meena went to a bank to withdraw Rs.2000. She asked the cashier to give her Rs.50 and Rs.100 notes only.

Let the number of Rs.50 notes be A and the number of Rs.100 notes be B According to the given information, A + B = 25 ………………….. (i) 50A + 100B =...

5 years ago
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Answer to: The sum of the digits of a two-digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the digits. Find the number.

Let the unit digit and tens digit of a number be x and y respectively. Then, Number (n) = 10B + A N after reversing order of the digits = 10A + B ...

5 years ago
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Answer to: Five years ago, Nuri was thrice as old as Sonu. Ten years later, Nuri will be twice as old as Sonu. How old are Nuri and Sonu?

Let us assume, present age of Nuri is x And present age of Sonu is y. According to the given condition, we can write as; x – 5 = 3(y – 5) x – ...

5 years ago
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Answer to: If we add 1 to the numerator and subtract 1 from the denominator, a fraction reduces to 1. It becomes if we only add 1 to the denominator. What is the fraction?

Let the fraction be a/b According to the given information, (a+1)/(b-1) = 1 => a – b = -2 ………………..(i) a/(b+1) = 1/2 => 2a-b = 1 ……………...

5 years ago
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Answer to: Solve the following pair of linear equations by the elimination method and the substitution method: (i) 3x – 5y – 4 = 0 and 9x = 2y + 7 (ii) x/2+ 2y/3 = -1 and x-y/3 = 3

(i) 3x – 5y – 4 = 0 and 9x = 2y + 7 By the method of elimination: 3x – 5y – 4 = 0 ……………… (i) 9x = 2y + 7 9x – 2y – 7 = 0 ……………………(ii) When t...

5 years ago
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Answer to: Solve the following pair of linear equations by the elimination method and the substitution method: (i) x + y = 5 and 2x – 3y = 4 (ii) 3x + 4y = 10 and 2x – 2y = 2

(i) x + y = 5 and 2x – 3y = 4 By the method of elimination. x + y = 5 ……………………………….. (i) 2x – 3y = 4 ……………………………..(ii) When the equation (i) i...

5 years ago
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