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Maths Assertion (A) & Reason (B) MCQ

MODEL PAPER 1 (BASIC) · CBSE STD 10 (CBSE - English Medium). 2 questions.

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Assertion (A) & Reason (B) MCQ

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2 questions · timed · auto-graded

MCQ 11 Mark
Assertion (A): No two positive numbers can have 18 as their H.C.F and 380 as their L.C.M.
Reason (R): L.C.M. is always completely divisible by H.C.F.
  • ✓
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true but R is not the correct explanation of A.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
Answer
Correct option: A.
Both A and R are true and R is the correct explanation of A.
(A) Both A and R are true and R is the correct explanation of A.
Explanation: 380 is not divisible by 18.
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MCQ 21 Mark
Assertion (A): Distance between (5, 12) and origin is 13 units.
Reason (R): D = $\sqrt{\left(x_1-x_2\right)^2+\left(y_1-y_2\right)^2}$
  • ✓
    Both A and R are true and R is the correct explanation of A.
  • B
    Both A and R are true but R is not the correct explanation of A.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
Answer
Correct option: A.
Both A and R are true and R is the correct explanation of A.
(A) Both A and R are true and R is the correct explanation of A.
Explanation:Distance of point (5, 12) from 8 origin is given, d = $\sqrt{(5-0)^2+(12-0)^2}$
$=\sqrt{25+144}=\sqrt{169}=13$
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Assertion (A) & Reason (B) MCQ - Maths STD 10 Questions - Vidyadip