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A New Year party was organised for which 150 people were invited, such that the average cost of food per person was Rs. 1840. But, due to the absence of some people at the party, the average cost of food per person increased by Rs. 160. How many of the invited people did not attend the party?
  • a)
    10
  • b)
    12
  • c)
    14
  • d)
    15
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A New Year party was organised for which 150 people were invited, such...
No. of people invited = 150
Average cost of food per person = Rs. 1840
⇒ Total cost of food = 150 × 1840 = Rs. 276000
Let ‘x’ people attended the party
∵ The average cost of food increased by Rs. 160,
⇒ Average cost of food per person became = 1840 + 160 = Rs. 2000
⇒ 2000x = 276000
⇒ x = 276000/2000 = 138
∴ No. of invited people that did not attend the party = 150 – 138 = 12
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Most Upvoted Answer
A New Year party was organised for which 150 people were invited, such...
New average 1840+160=2000
now
2000= (1850×150)÷{150-a}
a = 12
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A New Year party was organised for which 150 people were invited, such that the average cost of food per person was Rs. 1840. But, due to the absence of some people at the party, the average cost of food per person increased by Rs. 160. How many of the invited people did not attend the party?a)10b)12c)14d)15Correct answer is option 'B'. Can you explain this answer?
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A New Year party was organised for which 150 people were invited, such that the average cost of food per person was Rs. 1840. But, due to the absence of some people at the party, the average cost of food per person increased by Rs. 160. How many of the invited people did not attend the party?a)10b)12c)14d)15Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A New Year party was organised for which 150 people were invited, such that the average cost of food per person was Rs. 1840. But, due to the absence of some people at the party, the average cost of food per person increased by Rs. 160. How many of the invited people did not attend the party?a)10b)12c)14d)15Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A New Year party was organised for which 150 people were invited, such that the average cost of food per person was Rs. 1840. But, due to the absence of some people at the party, the average cost of food per person increased by Rs. 160. How many of the invited people did not attend the party?a)10b)12c)14d)15Correct answer is option 'B'. Can you explain this answer?.
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