A small terrace at a football ground comprises of 15 steps each of which is 50 m


2

674

March 30, 2019

The houses of a row are numbered consecutively from 1 to 49


2

599

March 30, 2019

A ladder has rungs 25 cm apart. The rungs decrease uniformly in length from 45 cm


2

465

March 30, 2019

The sum of the third term and the seventh term of an AP is 6 and their product is 8


2

211

March 30, 2019

Which term of the AP: 121, 117. 113, ….., is its first negative term?


2

618

March 30, 2019

In a potato race, a bucket is placed at the starting point, which is 5 m from the first potato,


2

370

March 30, 2019

200 logs are stacked in the following manner 20 logs in the bottom row, 19 in the next row,


2

896

March 30, 2019

A spiral is made up of successive semicircles, with centres alternately at A and B,


2

451

March 30, 2019

In a school, students thought of planting trees in and around the school to reduce air pollution


2

306

March 30, 2019

A sum of ₹ 700 is to be used to give seven cash prizes to students of a school


2

206

March 30, 2019

A contract on construction job specifies a penalty for delay of completion


2

149

March 30, 2019

Find the sum of the odd numbers between 0 and 50


2

323

March 30, 2019

Find the sum of the first 15 multiples of 8


2

414

March 30, 2019

Find the sum of the first 40 positive integers divisible by 6


2

252

March 30, 2019

If the sum of the first n terms of an AP is 4n – n2, what is the first term (that is S1)?


2

1215

March 30, 2019

Show that a1, a2, ……. an,…… form an AP where an is defined as below:


2

1693

March 30, 2019

If the sum of first 7 terms of an AP is 49 and that of 17 terms is 289, find the sum of first n terms


2

636

March 30, 2019

Find the sum of first 51 terms of an AP whose second and third terms


2

338

March 30, 2019

Find the sum of first 22 terms of an AP in which d = 7 and 22nd term is 149


2

471

March 30, 2019

The first and the last terms of an AP are 17 and 350 respectively


2

116

March 30, 2019

The first term of an AP is 5, the last term is 45 and the sum is 400


2

605

March 30, 2019

How many terms of AP: 9, 17, 25, … must be taken to give a sum of 636?


2

353

March 30, 2019

In an AP:(i) given a = 5, d = 3, an = 50, find n and Sn


2

1754

March 30, 2019

Find the sums given below:


2

233

March 30, 2019

Ramkali saved ₹ 5 in the first week of a year and then increased her weekly saving by ₹ 1.75


2

215

March 30, 2019

Subba Rao started work in 1995 at an annual salary of ₹ 5000 and received an increment of


2

324

March 30, 2019

The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and 10th terms is 44


2

536

March 30, 2019

Find the 20th term from the last term of the AP: 3, 8, 13, …, 253


2

613

March 30, 2019

Determine the AP whose 3rd term is 16 and 7th term exceeds the 5th term by 12


2

241

March 30, 2019

For what value of n, the nth term of two APs: 63, 65, 61,… and 3, 10, 17,… are equal?


2

225

March 30, 2019
