Question

A boxer needs to lose 3 1/2 kg in a month to be able to compete as a flyweight. In three weeks, he lovers his weight from 55.5 kg to 53.8 kg. How many kilograms must the boxer lose in the final week to be able to compete as a flyweight?

Answer 1

In the final week he need to lose 1.8 kg to be able to compete as a flyweight.

Further Explanation

Given:

A boxer needs to lose $3\frac{1}{2}$ kg

In three weeks he lost 55.5 kg - 53.8 kg

Question:

How many kilograms must the boxer lose in the final week to be able to compete as a flyweight?

He needs to lose $3\frac{1}{2}$ kg, we can change it into decimal which is 3.5 kg.

Weight he lost in 3 weeks

$\boxed {= 55.5 - 53.8 }\\\boxed {= 1.7 kg }$

In the final week he needs to lose:

$\boxed { = 3.5 - 1.7 }\\\boxed {= 1.8 kg }$

So, in the final week the boxer needs to lose 1.8 kg

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Answer 2

Answer:

The weight need to lose in final weeks is 1.8 kg

Step-by-step explanation:

we are given

A boxer needs to lose 3 1/2 kg in a month to be able to compete as a flyweight

so, weight need to lose

$=3\frac{1}{2}kg$

$=3.5kg$

In three weeks, he lovers his weight from 55.5 kg to 53.8 kg

so, lost weight is

$=55.5-53.8kg$

$=1.7kg$

So,

weight need to lose in final weeks = (weight need to lose)-( lost weight)

we can plug values

and we get

weight need to lose in final weeks is

$=3.5-1.7$

$=1.8$kg