Question

5:7 is equivalent to 21:15
true or false
​

Answer 1

Answer:

False

Step-by-step explanation:

It would have been right if the ratio was 15: 21 because 5*3:7*3= 15:21. You know that in ratio we can't interchange the numbers.

Answer 2

SOLUTION

TO CHECK

True / False below statement

5 : 7 is equivalent to 21 : 15

CONCEPT TO BE IMPLEMENTED

Ratio :

Ratio means comparing of two quantities

The ratio of a number a to another number b ( where b # 0) is a fraction a/b and it is written a : b , the first term a is called antecedent and the second term is called consequent

EVALUATION

First ratio = 5 : 7

Antecedent = 5

Consequent = 7

Second ratio = 21 : 15

On simplification we get

Second ratio = 7 : 5

Antecedent = 7

Consequent = 5

Since antecedent and consequent of both ratios are different

So 5 : 7 is not equivalent to 21 : 15

Hence the statement is FALSE

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