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Problems based on Numbers Test 5
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© examsnet.com
Question : 29
Total: 40
If the two numbers are differ by 5 and their product is 336. What is the sum of two numbers?
51
37
28
21
Validate
Solution:
Let the two numbers be x and y; then
x – y = 5 ...(i)
xy = 336 ...(ii)
Now,
(
x
+
y
)
2
=
(
x
−
y
)
2
+
4
x
y
=
(
5
)
2
+
4
×
336
=
1369
⇒
(
x
+
y
)
=
√
1369
=
37
© examsnet.com
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