The perimeter of a rectangular field is 362 m. If the width of the field is 84 m, what is its length ?
1 answer:
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Let n be unknown number, then 1/5 of this number is 1/5n. When you add these two numbers, you get
You know that this sum is equal to 24, so
1. Multiply this equation by 5:
2. Solve it:
Answer: n=20, correct choice is B.