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Question 4 / 15
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Walking at 4/5th of his usual speed, a man reaches his office 15 mins
late. Find his usual time for reaching the office?
+
45 mins
2 hrs
1 hr
30 mins​

45x^2

Step-by-step explanation:

(45+x)(1+x)

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!

why are you giving so many marks make your marks less and make a question list so that i can understand your question very nicely