A student requires 324 pencils in 6 years. How many dozen pencils will he require in 14 years ?
324 pencils$$\rightarrow$$6years.
324/6 pencils$$\rightarrow$$1year.
$$54\times14$$pencils$$\rightarrow$$14years.
Hence, students use 756 pencils in 14 years.
Therefore, No. of dozens of pencils=$$\frac{756}{12}$$.
=$$63$$.
Hence, Option E is correct.
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