110 of a pole is coloured red, 120 white, 130 blue, 140 black, 150 vi…

Question

110 of a pole is coloured red, 120 white, 130 blue, 140 black, 150 violet, 160 yellow and the rest is green. If the length of the green portion of the pole is 12.08 metres, then the length of the pole is = ?

Accepted Answer

Option A. 16m. Answer & Solution Answer: Option A Solution: & Green portion & = [ 1 - ( 110 + 120 + 130 + 140 + 150 + 160 ) ] & = [ 1 - 110 ( 1 + 1/2 + 1/3 + 1/4 + 1/5 + 1/6 ) ] & = 1 - 110 × 14760 & = 1 - 147600 & = 453600 & let the length of the pole be x metres & Then, 453600x = 12.08 & x =…