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In 15y and 160ab, coefficients are

  • A.ab
  • B.ab, y
  • C.15y and ab
  • D.160, 15

Answer: D

The coefficient is the numerical factor of a term.

\[ 15y \rightarrow 15, \qquad 160ab \rightarrow 160 \]

The letters \( y \), \( a \) and \( b \) are the variable parts, not coefficients.

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