Question
Average of 22 numbers is 58. If the average of the first
eight and last seven numbers is 65.5 and 48.5 respectively, and if the eleventh number is 35% more than the tenth number and the twelfth number is (50/9)% less than the eleventh number, then find the eleventh number.Solution
ATQ, Let the tenth number be 10x. So, the eleventh number = 1.35 × 10x = 13.5x. Twelfth number = 850/9 × 1/100 × 13.5x = 34x/3. So, 10x + 13.5x + 34x/3 = 58 × 22 – 8 × 65.5 – 7 × 48.5 = 290. Or, 100x/3 = 290. Or, x = 8.7. So, the eleventh number = 13.5 × 8.7 = 117.45.
Which tab in the Microsoft Office Ribbon typically contains options for inserting pictures, shapes, charts, and tables?
In Microsoft Excel, what is the purpose of the '$' sign in a cell reference (e.g., `$A$1`)?
Which feature in Microsoft PowerPoint allows you to apply a consistent design, including background, color schemes, fonts, and effects, to all slides in...
In Excel, if you enter `=A1+B1` into cell C1 and then drag the fill handle down to C2, what formula will appear in C2?
In Microsoft Excel, what is a "PivotTable" primarily used for?
When you want to add special visual or sound effects to the way a slide changes from one to the next during a presentation in PowerPoint, what feature w...
Which of the following views in Microsoft Word allows you to see how your document will look when printed, including headers, footers, and page breaks?
What is the primary purpose of "Track Changes" in Microsoft Word?
Which of the following is the default file extension for a Microsoft Word document in recent versions (2007 and later)?
In Microsoft Word, what is "Mail Merge" primarily used for?
Relevant for Exams:
