rs aggarwal solution Archives - Page 5 of 7

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Rajan@2021Guru

Asked: April 3, 2021In: CBSE

On a horizontal plane, there is a vertical tower with a flagpole on the top of the tower. At a point 9 meters away from the foot of the tower the angle of elevation of the top and bottom of the flagpole are 60 o and 30 o respectively. Find the height of the tower and the flagpole mounted on it

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An important question from RS Aggarwal book of trigonometry in which we have to find the height of the tower ...Read more

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Rajan@2021Guru

Asked: April 3, 2021In: CBSE

A vertical tower stands on a horizontal plane and is surmounted by a vertical flagstaff of height 6m. At a point on the plane, the angle of elevation of the bottle and top of the flagstaff are 30° and 45° respectively. Find the height of tower. (Take √3 = 1.73)

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An important and exam oriented question from trigonometry (height and distance) in which we have to calculate the height of ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

A man arranges to pay off a debt of Rs.3600 in 40 annual instalments which form an arithmetic series. When 30 of the instalments are paid he dies leaving one-third of the debt unpaid. Find the value of the first instalment

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An important question from arithmetic progression chapter in which we have to find the value of the first instalment if ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

In a school, students decided to plant trees in and around the school to reduce air pollution. It was decided that the number of trees, that each section of each class will plant, will be double of the class in which they are studying. If there are 1 to 12 classes in the school and each class has two sections, find how many trees were planted by the students.

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This is the question of arithmetic progression chapter and I found out little bit tricky so please help me in ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

The sum of first q terms of an AP is (63q-3q^2). If its pth term is -60, find the value of p. Also, find the 11th term of its AP.

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One of the most important and exam oriented question from arithmetic progression chapter in which we have been asked to ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

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

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This is the question of arithmetic progression chapter in which we are to calculate the sum of the first 10 ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

The sum of first n terms of two APs are in the ratio of (3n+8):(7n+15). Find the ratio of their 12th terms.

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An important question from arithmetic progression chapter in which we are to find the ratio of the 12 term of ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

An AP 8, 10, 12,……has 60 terms. Find its last term. Hence, find the sum of its last 10 terms

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One of the most important question from arithmetic progression chapter as it was already asked in previous year paper of ...Read more

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Rajan@2021Guru

Asked: April 2, 2021In: CBSE

The sum of first 7 terms of an AP is 49 and the sum of its first 17 terms is 289. Find the sum of its first n terms.

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One of the most important and exam oriented question from arithmetic progression chapter in which we have been asked to ...Read more

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Rajan@2021Guru

Asked: April 1, 2021In: CBSE

The sum of the first 7 terms of an AP is 182. If its 4th and 17th terms are in the ratio 1:5, find the AP.

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An important and exam oriented question from arithmetic progression chapter in which we are to find the AP, if the ...Read more

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