PYQ Vault

Day 111: CBSE Class 10 Maths

5 questions. Try each one first, then open its answer.

  1. Question 1

    Quadratic Equations. Asked once: 2025 (same type asked 3 times)

    14
    The discriminant of the quadratic equation bx2+ax+c=0; b≠0bx^2 + ax + c = 0;\ b \neq 0 is given by :

    Tap an option to check your answer.

  2. Question 2

    Some Applications of Trigonometry. Asked once: 2024 (same type asked 3 times)

    32
    From the top of a 15 m high building, the angle of elevation of the top of a tower is found to be 30∘30^\circ. From the bottom of the same building, the angle of elevation of the top of the tower is found to be 60∘60^\circ. Find the height of the tower and the distance between tower and the building.

  3. Question 3

    Surface Areas and Volumes. Asked once: 2022 (same type asked 3 times)

    4 (a)
    150 spherical marbles, each of diameter 1⋅41{\cdot}4 cm, are dropped in a cylindrical vessel of diameter 7 cm containing some water, and are completely immersed in water. Find the rise in the level of water in the cylindrical vessel.

  4. Question 4

    Arithmetic Progressions. Asked once: 2023 (same type asked 3 times)

    29 (A)
    How many terms are there in A.P. whose first and fifth term are −14-14 and 2, respectively and the last term is 62.

  5. Question 5

    Quadratic Equations. Asked once: 2023 (same type asked 3 times)

    5
    If x=0⋅3x = 0{\cdot}3, is a root of the equation x2−0⋅9k=0x^2 - 0{\cdot}9k = 0, then k is equal to :

    Tap an option to check your answer.