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1Votes1Answer(s)Two dice are rolled together. The probability of getting a sum more than 9 isPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)To calculate mean of a grouped data, Rahul used assumed mean method. He used d = (x - A), where A is assumed mean. Then $\bar{x}$ is equal toPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)If the sum of first n terms of an A.P. is given by $S_n = \frac{n}{2} (3n + 1)$, then the first term of the A.P. isPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)The line $2x - 3y = 6$ intersects $x - axis$ atPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)22nd term of the A.P.: $\frac{3}{2}, \frac{1}{2}, \frac{-1}{2}, \frac{-3}{2}, ........ $ isPosted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)Prove that $ \displaystyle \frac{tan \theta}{1 - cot \theta} + \frac{cot \theta}{1 - tan \theta} = sec \theta cosec \theta + 1$Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)Find the A.P. whose third term is 16 and seventh term exceeds the fifth term by 12. Also, find the sum of first 29 terms of the A.P.Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)Find the sum of first 20 terms of an A.P. whose nth term is given by $a_n = 5 + 2n$. Can 52 be a term of this AP.?Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)Solve the following pair of linear equations by graphical method : $2x + y = 9$ and $x - 2y = 2$Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags:
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1Votes1Answer(s)Nidhi received simple interest off Rs. 1200 when invested Rs x at 6% p.a. and Rs y at 5% p.a. for 1 year. Had she invested Rs. x at 3% p.a. and Rs. y at 8% for that year, she would have received simple interest of Rs 1,260. Find the values Rs. x an y.Posted on: Mar 13, 2025 by: Mohit Bhardwaj Last updated: Mar 13, 2025 | Tags: