Subject
Quantitative Aptitude
Topic
Number
If the 1st number in a series of consecutive odd numbers is 8 less than the last number in the series, how many numbers are there in the series?
If the 1st number in a series of consecutive odd numbers is 8 less than the last number in the series, how many numbers are there in the series?
ক)
4খ)
5গ)
7ঘ)
8ঙ)
none of theseExplanation
-ধরি, সিরিজে n সংখ্যক পদ আছে। -প্রথম পদ = x -শেষ পদ = x + 8 (কারণ শেষ পদটি প্রথম পদের চেয়ে 8 বেশি) -ক্রমাগত বিজোড় সংখ্যার সিরিজে, দুটি পরপর পদের মধ্যে পার্থক্য 2। -সুতরাং, শেষ পদ = প্রথম পদ + 2(n-1) অর্থাৎ, x + 8 = x + 2(n-1) -এই সমীকরণ থেকে আমরা পাই: 8 = 2(n-1) বা, 4 = n-1 বা, n = 5Related questions
If a,b and c are 3 consecutive integers and a>b>c, which of the following has the maximum value ?Five consecutive integers are given. If the sum of the first three integers is 24, what is the sum of the last three?M is a set of 5 consecutive integers whose average is 4. N is a set of 7 consecutive integers whose average is 7. How many members of set N are also members of set M?The product of two consecutive numbers is 12 more than the square of the smaller number. Find the greater number.The difference of the squares of two consecutive even integers is divisible by which of the following integers?