Question

An ice-cream company makes a popular brand of ice-cream m rectangular shaped bar 6 cm long, 5 cm wide and 2 cm thick. To cut the cost, the company has decided to reduce the volume of the bar by 20%, the thickness remaining the same, but the length and width will be decreased by the . same percentage amount. The new length L will satisfy :
A. `5.5ltLlt6`
B. `5ltLgt5.5`
C. `4.5ltLlt5`
D. `4ltLlt4.5`

Answer 1

Correct Answer - B
`LxxBxx2=48`
(New volume of ice cream)
`rArr LxxB=24`
Now, `6-(6xx10%)=5.4`,
`5-(5xx10%)=4.5 and `
Therefore ,`5.4xx4.5=24.3`
Clearly, `5ltLlt5.5`