Harendra Singh

EduRev Mechanical Engineering

Harendra Singh
EduRev Mechanical Engineering
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Discussed Questions

By selling an article for Rs 360, the loss incurred is 10%. At what minimum price should he sell that article to avoid loss?
  • a)
    Rs 320
  • b)
    Rs 324
  • c)
    Rs 396
  • d)
    Rs 400
Correct answer is option 'D'. Can you explain this answer?

Impact Learning answered  •  5 days ago
  1. Given:
    • Selling Price (S.P.) = Rs 360
    • Loss Percentage = 10%
  2. To find the Cost Price (C.P.): The loss incurred is 10%, meaning the selling price is 90% of the cost price.
    S.P.=0.90×C.P     
    360=0.90×C.P
  3. Solving for C.P.:
    C.P.=360/0.90=400
  4. To avoid a loss, the article must be sold at its cost price, which is Rs 400.
Answer: d) Rs 400.

In each of the sentences given below, a word is given in Quotes text. Identify the part of speech.
Q. I was "distressed" to hear about his death.
  • a)
    Adjective
  • b)
    Verb
  • c)
    Adverb
  • d)
    Noun
Correct answer is option 'A'. Can you explain this answer?

Impact Learning answered  •  2 weeks ago
 
The word "distressed" in the sentence is an adjective. Here's why:
  • An adjective describes a noun, providing more information about it.
  • In this context, "distressed" describes the speaker's emotional state.

Five students, including Amit, appear for an examination in which possible marks are integers between 0 and 50, both inclusive. The average marks for all the students is 38 and exactly three students got more than 32. If no two students got the same marks and Amit got the least marks among the five students, then the difference between the highest and lowest possible marks of Amit is
  • a)
    22
  • b)
    21
  • c)
    24
  • d)
    20
Correct answer is option 'D'. Can you explain this answer?

Impact Learning answered  •  2 weeks ago
The average marks for all the students is 38.
Sum = 5*38 = 190
To find the minimum marks scored by Amit, we need to maximise the score of remaining students.
Maximum scores sum of remaining students = 50 + 49 + 48 + 32 = 179
Minimum possible score of Amit = 190 - 179 = 11
It is given, Amit scored least. This implies maximum possible score of Amit is 31.
Difference = 31 - 11 = 20

If
the value of of 2 sin A 4 sin B is equal to
  • a)
    0
  • b)
    -4
  • c)
    2
  • d)
    4
Correct answer is option 'C'. Can you explain this answer?

Impact Learning answered  •  3 weeks ago
Given the quadratic equation in base b:
x2 - (1 * b + 1)x + (2 * b + 2) = 0 with solutions x = 3 and x = 6, substitute each root to find b.
  • For x = 3:
32 - (b + 1)(3) + (2b + 2) = 0.
Simplifying gives:
  • 8 - b = 0 ⇒ b = 8.
  • For x = 6:
62 - (b + 1)(6) + (2b + 2) = 0.
Simplifying gives:
  • 32 - 4b = 0 ⇒ b = 8.
Both roots confirm b = 8. Thus, the base is 8.
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