Advertisements
Advertisements
प्रश्न
If `4/5 `, a, 2 are in AP, find the value of a.
Advertisements
उत्तर
Rearrange the equation to solve for a:
`2a = 2 + 4/5`
`2a = 10/5 + 4/5`
`2a = 14/5`
`a = 14/10`
`a = 7/5`
APPEARS IN
संबंधित प्रश्न
Find the sum of all numbers from 50 to 350 which are divisible by 6. Hence find the 15th term of that A.P.
Find the sum of the following APs:
2, 7, 12, ..., to 10 terms.
In an AP Given a12 = 37, d = 3, find a and S12.
Determine the nth term of the AP whose 7th term is -1 and 16th term is 17.
Divide 24 in three parts such that they are in AP and their product is 440.
Find the sum of the following Aps:
9, 7, 5, 3 … to 14 terms
Find the first term and common difference for the A.P.
127, 135, 143, 151,...
In an A.P., the first term is 22, nth term is −11 and the sum to first n terms is 66. Find n and d, the common difference
The sum of first n terms of an A.P. is 5n − n2. Find the nth term of this A.P.
If the sum of first n terms of an A.P. is \[\frac{1}{2}\] (3n2 + 7n), then find its nth term. Hence write its 20th term.
If the first term of an A.P. is 2 and common difference is 4, then the sum of its 40 terms is
The sum of first n odd natural numbers is ______.
Q.13
If the third term of an A.P. is 1 and 6th term is – 11, find the sum of its first 32 terms.
If ₹ 3900 will have to be repaid in 12 monthly instalments such that each instalment being more than the preceding one by ₹ 10, then find the amount of the first and last instalment
If the sum of three numbers in an A.P. is 9 and their product is 24, then numbers are ______.
Yasmeen saves Rs 32 during the first month, Rs 36 in the second month and Rs 40 in the third month. If she continues to save in this manner, in how many months will she save Rs 2000?
The students of a school decided to beautify the school on the Annual Day by fixing colourful flags on the straight passage of the school. They have 27 flags to be fixed at intervals of every 2 m. The flags are stored at the position of the middle most flag. Ruchi was given the responsibility of placing the flags. Ruchi kept her books where the flags were stored. She could carry only one flag at a time. How much distance did she cover in completing this job and returning back to collect her books? What is the maximum distance she travelled carrying a flag?
Find the value of a25 – a15 for the AP: 6, 9, 12, 15, ………..
Sum of 1 to n natural number is 45, then find the value of n.
