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Step-by-step explanation:
Que. rectangular box 2:3:4
length=2x
breadth =3x
height =4x
surface Area =2(2x.3x+3x.4x+4x.2x)
=2(6x
2
+12x
2
+8x
2
)
=52x
2
→9.5×52x
2
−8×52x
2
=1248
∴1.5×52x
2
=1248
∴x
2
=
1.5×52
1248
∴x
2
=16x=4
→l=2x=8cm,b=3x=12cm,h=4x=16cm.
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