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## The amount of air present in a cylinder when a vacuum pump removes 1/4 of the air remaining in the cylinder at a time. Find whether this forms an A.P or not.

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The Question is from NCERT book of Class 10th on Page: 99 Exercise 5.1 Question no. 1 (ii). Find wether ...Read more

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## 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. Find wether the question is an A.P or not.

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The question given is from class 10th NCERT book of  Excersice no. 5.1 and question number 1( iii ). In ...Read more

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## The taxi fare after each km when the fare is Rs 15 for the first km and Rs 8 for each additional km. Find whether this forms an A.P

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The following question is from Class 10th NCERT book. Exercise 5.1 Page: 99 Question no. 1 (i). Does the list ...Read more

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Newbie

## Triangles : If ∆ABC ~ ∆RPQ, AB = 3 cm, BC = 5 cm, AC = 6 cm, RP = 6 cm and PQ = 10, then find QR

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If ∆ABC ~ ∆RPQ, AB = 3 cm, BC = 5 cm, AC = 6 cm, RP = 6 cm ...Read more

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Newbie

## Given 15 cot A = 8, find sin A and sec A.

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this is question number 4 of exercise 8.1 introduction to trigonometry class 10th. please help to solve it