In four years time Ahmed will be twice as old as Hamza and four times as old as Ali. Three years ago Ahmed was three times as old as Hamza, How old is Ahmed now?
Answer: 24
Explanation
Circumference of the circle is 2(pi)r.. As 100 revolutions are completed... 100x2(22/7)r = 88x1000m r= (88/44)x7 r=14m Now diameter of circle is given as d=2r d=2*14m d=24m Hence correct answer is 24m..
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