What’s the Error? A student said that the ratios 3/4 and 9/16 were proportional. What error did the student make
Solution:
A student said that the ratios 3/4 and 9/16 were proportional.
We have to find the error made by the student
We know that the two ratios a:b and c:d are said to be proportional if a/b = c/d or ad = bc
Given, a : b = 3 : 3
c : d = 9 : 16
ad = 3(16) = 48
bc = 3(9) = 27
ad ≠ bc
The given ratios do not satisfy the conditions to be proportional.
Therefore, the given ratios are not proportional.
✦ Try This: What’s the Error? A student said that the ratios 2/5 and 10/17 were proportional. What error did the student make?
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 8
NCERT Exemplar Class 7 Maths Chapter 7 Problem 120
What’s the Error? A student said that the ratios 3/4 and 9/16 were proportional. What error did the student make
Summary:
A student said that the ratios 3/4 and 9/16 were proportional. The error made by the student is that he had multiplied the numerator by 3 and denominator by 4.
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