Subject: Maths, asked on 16/2/12

## The ratio of the sum of n terms of two A.P.s is (7n+1):(4n+27).Find the ratio of their mth term.

Subject: Maths, asked on 22/2/21

## find the number of terms in an ap 18, 15 ,12 .......- 48 and also find the sum of all its terms

Subject: Maths, asked on 12/2/13

## The ratio of the sums of m and n terms of an AP is m2 : n2. show that the ratio of the mth and nth terms is (2m-1) : (2n-1)In an AP, the sum of first n terms is 3n2/2 + 5n/2, find its 25th term.

Subject: Maths, asked on 14/3/15

## How mant terms of an AP -6,-11/2,-5,-9/2........are needed to give the sum 0???

Subject: Maths, asked on 9/6/15

## The sum of four consecutive numbers in an AP is 32 and the ratio of the product of the first and the last terms to the product of the two middle terms is 7 : 15. Find the numbers.

Subject: Maths, asked on 25/9/18

## How many term of the A.P 8,15,22........... add upto 1490?

Subject: Maths, asked on 13/6/11

## If the mth term of an A.P. be 1/n and nth term be 1/m, then show that its (mn)th term is 1.

Subject: Maths, asked on 21/11/20

## Reema being a plant lover, decides to open a nursery and she bought few plants with pots. She wants to place the pots in such a way that number of the pots in the first row is 3, in the second row is 5 and in the third row is 7 and so on..... a)Find the expression for number of plants in the nth row. i) 2n + 1 ii) 2n − 1 iii) 4n − 1 iv) 2n + 3 b) Find the number of plants in the 7th row. i) 21 ii) 7 iii) 15 iv) 17 c) If there are 25 plants in the last row, find the total number of rows. i) 11 ii) 10 iii) 13 iv) 12 d) Assuming that Reema has kept distance between any two consecutive plants in a row as 30 cm, find the length of the 12th row (i.e. the distance between the first and the last plant in the 12th row neglecting the width of the plants). i) 7.5 metres ii) 7.2 metres iii) 6.9 metres iv) 7.0 metres e) Reema’s father gifts her 50 more plants. She continues to arrange these plants in Arithmetic Progression. She observes that she is falling short of some plants to complete the A.P. How many minimum number of plants does she require more to complete the A.P. ? (Assuming 25 plants in the last row before her father gifts her 50 plants). i) 6 ii) 7 iii) 8 iv) 5

Subject: Maths, asked on 19/1/12

## IF THE SUM OF FIRST m TERMS OF AN AP IS n. AND THE SUM OF FIRST n TERMS IS m, THEN SHOW THAT THE SUM OF ITS FIRST( m+n) TERMS IS -(m+n).

Subject: Maths, asked on 10/11/20

## Sprint events in track and field usually consists of the 100 m , 200 m and 400 m race though 60 m dashers are also held on occasion . These races are largely based upon the athlete's ability to accelerate to his or her maximum speed in the quickest time possible . Girish wants to participate in 200 m Sprint . He can currently run that distance in 45 sec . But he wants to do that in under 30 sec . With each day of practice , it takes him 2 sec less.Respond to the above situation by answering following questions . 1. What is minimum number of days he need to practice till his goal is accomplished? 2. Write the AP for the above situation.

Subject: Maths, asked on 14/11/12

## Maths Project :make designs using arithmetic  progression

Subject: Maths, asked on 11/12/15

## How many terms of the A.P. : -15, -13, -11, ..... are needed to make the sum -55? Explain the reason.

Subject: Maths, asked on 4/1/13

## if the pth term of an A.P is q and the qth term is p, prove that its nth term is (p+q-n)

Subject: Maths, asked on 27/2/14

## find the 6th term from the end of the AP 5,2, -1 , -4................. -31 .

Subject: Maths, asked on 8/12/11

## the sum of the first n terms of an AP is given by sn=3n2-n , determine the AP and its 25thterm.

Subject: Maths, asked 1 week, 4 days ago

## A.p. questions solve please

Subject: Maths, asked on 26/2/11

## If m times the mth term of an A.P is equal to n times its nth term, show that the (m+n)th term of the A.P is zero.

Subject: Maths, asked on 25/9/18

## Find the 100th term of the A.P 50,56,62,68.....

Subject: Maths, asked on 30/10/14

## the sum of first six terms of an ap is 42 .the ratio of its 10th term is and its 30th term is 1:3. calculate the first and thirteenth term

Subject: Maths, asked on 23/12/13

## the 12th term from the end in the AP 9,5,1.....is -107.Find the last term

Subject: Maths, asked on 6/2/12

## The sum of the third and seventh term of an A.P. is 6 and their product is 8. Find the sum of the first sixteen terms of the A.P. .

Subject: Maths, asked on 6/12/20

## Case study of maths

Subject: Maths, asked on 16/12/12

## If pth , qth and rth term of an AP are a,b,c respectively , then show that(a-b)r +(b-c)p + (c-a)q = 0Please help me with this question asap .

Subject: Maths, asked on 4/2/16

## the nth term of an A.P is 3n - 8 . Is the pattern the pattern of numbers so formed in an A.P? If so then find its 16th term.

Subject: Maths, asked on 25/10/12

## 150 workers were engaged to finish a piece of work in a certain no. of days. 4 workers droped d 2nd day, 4 more workers droped the 3rd day n so on..... it takes 8 more days to finish the work now ..find d no. of days in vch the work waz completed....

Subject: Maths, asked on 19/2/13

## Find the sum of all the numbers less than 1000, which are neither divisible by 5 nor by 2.

Subject: Maths, asked on 27/2/12

## An AP consists of 37 terms. The sum of the three middle most terms is 225 and thesum of the last three is 429. Find the AP.

Subject: Maths, asked on 7/6/20

## If p, q, r and s are in A.P. then r - q is

Subject: Maths, asked on 29/2/12

## If the sum of first 7 terms of an AP is 49 and that of first 17 terms is 289.Find the sum of first n terms

Subject: Maths, asked on 2/3/15

## Tereare n terms in an AP. Then, fourth term from the beginning is which term from the last?

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