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प्रश्न
Choose the correct alternative answer for the following sub question
In an A.P., 0, – 4, – 8, – 12, ... find t2 = ?
विकल्प
– 8
– 4
– 12
0
उत्तर
– 4
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संबंधित प्रश्न
There is an auditorium with 35 rows of seats. There are 20 seats in the first row, 22 seats in the second row, 24 seats in the third row and so on. Find the number of seats in the twenty-fifth row.
If the seventh term of an AP is 1/9 and its ninth term is 1/7, find its 63rd term.
Write the first three terms in each of the sequences defined by the following
an = 3n + 2
In the following situation, involved make an arithmetic progression? and why?
The cost of digging a well after every metre of digging, when it costs Rs 150 for the first metre and rises by Rs 50 for each subsequent metre.
Write first four terms of the A.P. when the first term a and the common differenced are given as follows:
a = -2, d = 0
Following are APs or not? If they form an A.P. find the common difference d and write three more terms:
`sqrt2, sqrt8, sqrt18, sqrt32 ...`
Which of the following sequences are arithmetic progressions? For those which are arithmetic progressions, find out the common difference.
0, −4, −8, −12, ...
Find Is 68 a term of the A.P. 7, 10, 13, ...?
Find n if the given value of x is the nth term of the given A.P.
`5 1/2, 11, 16 1/2, 22, ......; x = 550`
Find n if the given value of x is the nth term of the given A.P.
`1, 21/11, 31/11, 41/11,......, x = 171/11`
Find the term of the arithmetic progression 9, 12, 15, 18, ... which is 39 more than its 36th term.
The angles of a quadrilateral are in A.P. whose common difference is 10°. Find the angles.
The 24th term of an A.P. is twice its 10th term. Show that its 72nd term is 4 times its 15thterm.
Find the number of natural numbers between 101 and 999 which are divisible by both 2 and 5.
Which term of following A.P. is −940.
50, 40, 30, 20 ........
Activity :- Here a = `square`, d = `square`, tn = −940
According to formula, tn = a + (n − 1)d
−940 = `square`
n = `square`
If a, b, c, d, e are in A.P., then the value of a - 4b + 6c - 4d + e is ______.
If 2x, x + 10, 3x + 2 are in A.P., then x is equal to ______.
Which of the following form an AP? Justify your answer.
`sqrt(3), sqrt(12), sqrt(27), sqrt(48)`
The school auditorium was to be constructed to accommodate at least 1500 people. The chairs are to be placed in concentric circular arrangement in such a way that each succeeding circular row has 10 seats more than the previous one.
- If the first circular row has 30 seats, how many seats will be there in the 10th row?
- For 1500 seats in the auditorium, how many rows need to be there?
OR
If 1500 seats are to be arranged in the auditorium, how many seats are still left to be put after the 10th row? - If there were 17 rows in the auditorium, how many seats will be there in the middle row?
| Treasure Hunt is an exciting and adventurous game where participants follow a series of clues/numbers/maps to discover hidden treasure. Players engage in a thrilling quest, solving puzzles and riddles to unveil the location of the coveted prize. While playing a treasure hunt game, some clues (numbers) are hidden in various spots collectively forming an A.P. If the number on the nth spot is 20 + 4n, then answer the following questions to help the players in spotting the clues: |
- Which number is on first spot? 1
- Which spot is numbered as 112? 2
OR - What is the sum of all the numbers on the first 10 spots? 2
- Which spot is numbered as 112? 2
- Which number is on the (n – 2)th spot? 1
