Hiw many silver coins of 1.75 cm diameter and of 2 mm thikness is melt

1.	Hiw many silver coins of 1.75 cm diameter and of 2 mm thikness is melted to form of cuboid of dimemsions 5.5 cm×10cm×3.5 cm.?
Answer» Step-by-step explanation: *Let* *the* no. of *COINS* be 'X'. *DIAMETER* of *the* *coins* =1.75cm *Radius=1.75/2cm Thickness* of *each* *coin=2mm=0.2cm=h. Dimensions* of *the* *CUBOID* *are=5.5cm×10cm×3.5cm. A.to.q Vol.of the* *cuboid* =*Vol.of 'X' coins* =>l×b×h=(X)πr^2h =>5.5×10×3.5=(X)×22/7×1.75/2×1.75/2×0.2 =>55/10×10×35/10=(X)77/160 =>55×35/10×160/77=(X) =>400=(X) *THEREFORE* 400coins *WOULD* be *formed*.

Hiw many silver coins of 1.75 cm diameter and of 2 mm thikness is melted to form of cuboid of dimemsions 5.5 cm×10cm×3.5 cm.?

Answer»

Step-by-step explanation:

Let the no. of COINS be 'X'.

DIAMETER of the coins =1.75cm

Radius=1.75/2cm

Thickness of each coin=2mm=0.2cm=h.

Dimensions of the CUBOID are=5.5cm×10cm×3.5cm.

A.to.q

Vol.of the cuboid =Vol.of 'X' coins

=>l×b×h=(X)πr^2h

=>5.5×10×3.5=(X)×22/7×1.75/2×1.75/2×0.2

=>55/10×10×35/10=(X)77/160

=>55×35/10×160/77=(X)

=>400=(X)

THEREFORE 400coins WOULD be formed.

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