Calculating body-mass index (BMI) is a way to gauge whether a person should lose weight. Doctors recommend that body-mass index values fall between 19 and 25. The formula for Body mass index B is B=705w/h^2, where w is weight in pounds and h is height in inches. A patient is 6ft 2 in tall. What should his or her weight be to have a body mass index of 25? (Round to the nearest whole pound)
h = 6ft, 2 in = 6* 12" + 2 = 74"
W is unknown and has to be evaluated.
750 w / 742 = 25
w = (742 * 25 )/ 705 = 194.
Thank you Jim . I took 750 for 705.