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MODEL PAPER 7 (BASIC) — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsMODEL PAPER 7 (BASIC)1 Mark
MCQ
Assertion $(A):$ Two identical solid cubes of side a are joined end to end. Then the total surface area of the resulting cuboid is $10 a^2.$
Reason $(R):$ The total surface area of a cube having side $a = 6 a^2.$
  • ✓
    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 $A$.
 Both $A$ and $R$ are true and $R$ is the correct explanation of $A.$
 Both $A$ and $R$ are true and $R$ is the correct explanation of $A$.

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