if the speed of nike is uniform which is 65 km/h and the distance is 15 km what will be the time taken to reach the destination
please dont spam
Share
if the speed of nike is uniform which is 65 km/h and the distance is 15 km what will be the time taken to reach the destination
please dont spam
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer
Let 2x and 2x+2 be the required even numbers.
Given that the sum of squares numbers is 580.
Therefore,
(2x)2+(2x+2)2=580
4x2+4x2+4+8x=580
8X2+8x+4−580=0
8x2+8x−576=0
x2+x−72=0⇒ Required quadratic equation.
x2+9x−8x−72=0
(x+9)(x−8)=0
x=−9 or x=8
Case I:- x=−9
Therefore, the required numbers are-
2x=2×−9=−18
2x++2=2×−9+2=−16
Case II:- x=8
Therefore, the required numbers are-
2x=2×8=16
2x+2=2×8+2=18
Hence the required numbers are −18 and −16 or 16 and 18.
Answer :
Let the time taken be t hour.
Speed (u) = 65 km/h
Distance (S) = 15 km
Time = Distance / Speed
t = S/u
t = 15/65 hour
t = 3/13 hour
t = 0.23 hour
Hope It May help you.