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Find three machines that can be replaced with hook-ups of (× 5) machines.

Solution:

We have to find three machines that can be replaced with hook-ups of (× 5) machines.

It is possible to hook up multiple (×5) machines.

Example: 2, 3, 4, 5, etc

Let us consider three hook-up combinations of (×5) machines, i.e., 2,3,4

For 2 hooked machines

Output = 5 × 5 = 5²

= 25

For 3 hooked machines

Output = 5 × 5 × 5 = 5³

=125

For 4 hooked machines

Output = 5 × 5 × 5 × 5 = 5⁴

= 625

Therefore, the three machines that can replace hook-ups of (×5) machines are (×25),(×125) and (×625) machines.

✦ Try This: Find three machines that can be replaced with hook-ups of (× 3) machines.

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 12

NCERT Exemplar Class 8 Maths Chapter 8 Problem 167

Summary:

The three machines that can be replaced with hook-ups of (× 5) machines are (×25),(×125) and (×625).

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