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UPSC 2013 CDS 2 Mathematics Solved Paper
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© examsnet.com
Question : 1
Total: 100
The HCF of two numbers is 98 and their LCM is 2352. The sum of the numbers may be
[2013 CDS-II]
1372
1398
1426
1484
Validate
Solution:
Let the two numbers be x and y.
Suppose x = 98a and y= 98b.
Sum
=
x
+
y
=
98
(
a
+
b
)
Now, the number must be divisibleby 98.
From the options,
1372
÷
98
=
14
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