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Deepak BoraNewbie

Asked: August 12, 2020In: CBSE, ICSE

The sum of the first n terms of an AP is given by S_n=(2n^2+5n). Find the nth terms of the AP.

In this Question the sum of first n terms of the AP is given. You have to find its nth ...Read more

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Deepak BoraNewbie

Asked: August 12, 2020In: CBSE

If the nth term of an AP is (4n+1) find the sum of the first 15 terms of the AP. Also find the sum of its n terms.

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This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here ...Read more

Deepak BoraNewbie

Asked: August 11, 2020In: CBSE

Find the number of terms of the AP 18,15,12,……so that their sum is 45. Explain the double answer.

ICSE & CBSE Board Question Based on Arithmetic Progression of RS Aggarwal Here you have to find the (i) Number ...Read more

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Deepak BoraNewbie

Asked: August 11, 2020In: CBSE

Find the number of terms of the AP 64,60,56,……so that their sum is 544. Explain the double answer.

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This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here ...Read more

Deepak BoraNewbie

Asked: August 11, 2020In: CBSE, ICSE

Find the number of terms of the AP 63,60,57,……so that their sum is 693. Explain the double answer.

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here ...Read more

Deepak BoraNewbie

Asked: August 11, 2020In: CBSE, ICSE

How many terms of the AP 21,18,15,…..must be added to get the sum 0?

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE Board. Here ...Read more

Deepak BoraNewbie

Asked: August 11, 2020In: CBSE, ICSE

If the 5th and 12th terms of an AP are -4 and -18 respectively, find the sum of first 20 terms of the AP.

Here the two terms of an AP is given you have to find the sum of first n term of ...Read more

Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A right triangle whose sides are 15 cm and 20 cm other than hypotenuse, is made to revolve about its hypotenuse. Find the volume and surface area of the double cone so formed.

In given problem choose value of π as found appropriate. This is one of the important question from the cbse board ...Read more

Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A copper wire of diameter 6 mm is evenly wrapped on a cylinder of length 18 cm and diameter 49 cm to cover its whole surface. Find the length and the volume of the wire. If the density of the copper be 8.8 g per cm 3 , then find the weight of the wire.

This is one of the important question as well as HOT question. Question number 33 from RS Aggarwal book page ...Read more

Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

In a corner of a rectangular field with dimensions 35 m ×22 m, a well with 14 m inside diameter is dug 8 m deep. The earth dug out is spread evenly over the remaining part of the field. Find the rise in the level of the field.

Given problem is the HOT problem according to the cbse syllabus. Problem from RS Aggarwal book, problem number 32, page ...Read more

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