8. What will happen to the volume of a cuboid if its : (i) Length is doubled, height is same and breadth is halved?
(ii) Length is doubled, height is doubled and breadth is same?

When its length is doubled, its length becomes 2 × l . When its breadth is halved, its length becomes b 2 . The height h remains the same . ∴ It can be observed that the new volume is the same as the initial volume .

Step-by-step explanation:

Hope it is helpful...

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

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