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Byju's Answer
Standard XII
Physics
Springs in Parallel and Series
480 sweets we...
Question
480
sweets were equally distributed among a certain number of children .Had their been
4
more children each child would have got
6
less sweets. Find the original number of children.
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Solution
Let,
x
=
total sweets ,
y
=
children
According to question ,
x
y
+
4
=
x
y
−
6
480
y
+
4
=
480
y
−
6
480
y
=
480
(
y
+
4
)
−
6
y
(
y
2
+
4
y
)
.
480
y
=
480
y
+
1920
−
6
y
2
−
24
y
6
y
2
+
4
y
−
320
=
0
y
=
−
4
±
√
16
+
1280
2
y
=
−
4
±
36
2
y
=
16
,
−
20
y
>
0
⇒
y
=
16
.
∴
x
y
=
30
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