what is 15th term of A.P whose 1st term is 25 and 3rd term is 31
mukkaswetha , 10 Years ago
Grade 7
8 grade maths> what is 15 th term of A.P whose 1 st term...
1 Answers
SHAIK AASIF AHAMED
Last Activity: 10 Years ago
Hello student,
Please find the answer to your question below
Given 1stterm=a=25.....(1) and 3rdterm=a+2d=31......(2)
Substituting 2 in 1 we get 25+2d=31 so 2d=6 which gives d=3
So 15thterm=a+14d=25+14(3)=25+42=67
Provide a better Answer & Earn Cool Goodies
Enter text here...
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Enter text here...
Other Related Questions on 8 grade maths
The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, find the numbers.
8 grade maths
1 Answer Available
Last Activity: 1 Year ago(s)
A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines started at 9 a.m while machine P closed at 11 a.m. and the remaining two machines complete the work. Approximately at what time will the work be finished?A. 11:30 a.mB. 12 noonC. 12:30 p.mD. 1 p.m
8 grade maths
1 Answer Available
Last Activity: 1 Year ago(s)
What number should be added to (7)/(12) to get (4)/(15) ?
8 grade maths
1 Answer Available
Last Activity: 2 Year ago(s)
2 men each working 5 hour per day can finish a job in 12 days. How long will 4 men each working 2 hours per day take to finish the same job?
8 grade maths
2 Answer Available
Last Activity: 2 Year ago(s)