#165 Land for rent
Penny Wise, chief financial officer of the Hartree Power Company, has decided to rent out surplus land beside its cooling towers, in an effort to boost her company鈥檚 annual income. The land, outlined in red on the plan above, was to have been for a fourth tower, which is now no longer required, plus the land between the three existing towers.
Her legal officer has been tasked with preparing the rental agreement, but is having difficulty in calculating the area of land for rent. Can you help?
Solution next week
#164 Sum thing wrong
Solution
1656
+1076
=2732
It helps to replace the original 鈥渨rong鈥� digits with letters, so that ABCB + ADEB = FEGF. Since 2B ends in F, F is even, so in the left column 2A = F. A can鈥檛 be 2, so can only equal 1, 3 or 4, meaning F is 2, 6 or 8, and B (which ends in F when doubled) is 6, 8 or 9. But B + D must be less than 10 to avoid carrying 1 to the left column, and B = 8 or 9 both lead to dead ends, meaning B = 6, A = 1, F = 2 and the other numbers follow.
Quick quiz #149
1 Which Neptunian moon is known for its highly eccentric orbit?
2 What name is given to a woody plant that is rooted in the ground and uses other trees as support to climb?
3 The duodenum, jejunum and ileum are the three sections of which human organ?
4 The Fujita scale measures the intensity of which extreme weather events?
5 Which of the following dinosaur genera isn鈥檛 classed as a sauropod: Brachiosaurus, Patagotitan or Spinosaurus?
Answers
1 Nereid
2 A liana
3 The small intestine
4 Tornadoes
5 Spinosaurus