ncert class 10th Archives - Page 15 of 20

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

For an A.P., it is given that the first term (a) = 5, common difference (d) = 3 and the n∧th term (an) = 50. Find n and sum of first n terms (Sn) of the A.P

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 31 Arithmetic ...Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

Prove that= √ [ (1 + sin A) / (1 – sin A) ] = sec A + tan A

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 30Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

Show that the points (7, 10), (-2, 5) and (3, -4) are vertices of an isosceles right triangle

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 29 ...Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

Use Euclid Division Lemma to show that the square of any positive integer is either of the form 3q or 3q + 1 for some integer q.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 28Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

The present age of a father is three years more than three times the age of his son. Three years hence the father’s age will be 10 years more than twice the age of the son. Determine their present ages.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 27 ...Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

A fraction becomes 1/ 3 when 1 is subtracted from the numerator and it becomes 1/ 4 when 8 is added to its denominator. Find the fraction.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 27 ...Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

2 cubes, each of volume 125 cm³ , are joined end to end. Find the surface area of the resulting cuboid.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 26Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

Find the mode of the following distribution

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 25Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

In the given figure, find the perimeter of ΔABC, if AP = 12 cm.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 24 ...Read more

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Deepak BoraNewbie

Asked: July 31, 2020In: CBSE

In the given figure, a quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = BC + AD.

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CBSE 10th Class Mathematics Past year question paper Year 2020 SET 1, Code Number – 30/5/1 Question Number – 24 ...Read more

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