5
You visited us
5
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VII
Mathematics
Additive Identity & Additive Inverse
Mark against...
Question
Mark (✓) against the correct answer
What least number is to be subtracted from each term of the ratio 15 : 19 to make the ratio 3 : 4?
(a) 3
(b) 5
(c) 6
(d) 9
Open in App
Solution
(a) 3
Suppose that x is the number that is to be subtracted.
Then, (15 − x) : (19 − x) = 3 : 4
⇒
15
-
x
19
-
x
=
3
4
Cross
multiplying
,
we
get
:
60
-
4
x
=
57
-
3
x
⇒
x
=
3
Suggest Corrections
1
Similar questions
Q.
Mark (✓) against the correct answer
What least number must be subtracted from each term of the ratio 15 : 19 to make the ratio 3 : 4?
(a) 3
(b) 5
(c) 6
(d) 9
Q.
Mark the correct alternative in the following question:
What least number is to be subtracted from each term of the ratio 15 : 19 to make the ratio 3 : 4?
(a) 3 (b) 5 (c) 6 (d) 9
Q.
Mark (✓) against the correct answer
What must be subtracted from −3 to get −9?
(a) −6
(b) 12
(c) 6
(d) −12
Q.
What number should be subtracted from both the terms of the ratio
15
:
19
in order to make it
3
:
4
?
Q.
Mark (✓) against the correct answer
What least number must be subtracted from 178 to make it a perfect square?
(a) 6
(b) 8
(c) 9
(d) 7
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Properties of Addition and Subtraction of Integers
MATHEMATICS
Watch in App
Explore more
Additive Identity & Additive Inverse
Standard VII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Solve
Textbooks
Question Papers
Install app