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Number System Practice Test 1
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© examsnet.com
Question : 2
Total: 40
Find the sum of two numbers whose bigger number is greater than the smaller number by 1 and the square of the bigger number is greater than the square of the smaller number by 9?
28
9
30
12
36
Validate
Solution:
👈: Video Solution
Let the greater number be x.
And the smaller number be y.
According to the question
x
−
y
=
1
and
x
2
−
y
2
=
9
(
x
+
y
)
(
x
−
y
)
=
9
(
x
+
y
)
(
1
)
=
9
So, x + y = 9, i.e., the sum of numbers = 9.
© examsnet.com
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