Latest TCS Aptitude Question SOLUTION: arun makes a popular a brand of icecream in a rectangular shapeds bar 6cm long,5cm wide and 2cm thick to cut costs the company has decided to reduce the volume of the bar by 19% th

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arun makes a popular a brand of icecream in a rectangular shapeds bar 6cm long,5cm wide and 2cm thick to cut costs the company has decided to reduce the volume of the bar by 19% the thickness will remain the same but the length and width will be reduced by same percentage the new width will be a)7.5 b)6.5 c)4.5 d)5.5

Asked In TCS dhritiman (8 years ago)

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Read Solution (3) :

dee hack kr  (8 years ago)

we have to reduce the width, then
new width < old width(5);
new width

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priya sahu  (8 years ago)

Volume =l×b×h = 6×5×2 = 60 cm3
Now volume is reduced by 19%.
Therefore, new volume = (100−19)100×60=48.6
Now, thickness remains same and let length and breadth be reduced to x%
so, new volume: (x100×6)(x100×5)2=48.6
Solving we get x =90
thus length and width is reduced by 10%
New width = 5-(10% of 5)=4.5

ans c)4.5

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DHARSHINI.D  (4 years ago)

Volume = l*b*h
6*5*2 = 60cm^3
Volume is reduced by 19%
New Volume = (100-19)100*60 = 486000 = 48.6
Thickness is same but length and breadth reduces by x%
new volume = (x/100*6)(x/100*5)2 = 48.6
x=90
Length and Breadth reduced by 10%
new width = 5-(10 * 5/100)
= 4.5

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