The number 312 lies between the perfect .(125 and 330) b.( 216 and 330) c(216 and 343) d(300 and 343). so the cube root of 312 lies between the .(5 and 6) b.(6 and 7) c.(7 and 8) d.(8 and 9), which means 312 a.(a rational) b.(an rational) number.

6 and 7, irrational

Step-by-step explanation:

When we consider the cubes of natural numbers we find that

The given number 312 lie between these two cubes.

Hence cube root of 312 has to lie between cube roots of these two numbers.

i.e. cube root of 312 lies between 6 and 7

Since

cannot be a perfect cube of a rational number

HEnce cube root of 312 is an irrational number

step-by-step explanation:

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step-by-step explanation: