Question

4) How much multi-colored confetti worth $3 a pound should be mixed with metallic star confetti worth $4 a pound to make 400 pounds of a mixture worth $3.65 a pound?

5) A bought traveled 28 miles downstream in 4 hours and made the return trip in 7 hours. Find the speed of the bat in still water and the speed of current.

Answer 1

@ This can be solved by alligation Rule low High porte price 3 Average 3.65 , price High-Average : Average_low 4-3165 3:65-3 0185 0.65 T : 13 mixed. to amount 400 lag In the ratio of 1:13 they are $3 brend : £4 Qualetid THIS * 400 = 2 * 400 = 1820-140 pounds, 1215 4400 - 13 x 400 = 1341 - 260 pounds! © Let ċ be speed of current is be Recall Speedy time = distance speed of beatern - Speeds distance time for downward journey c+s » Speed upward journey Se – speed Given data d=28 mites ets - 28 sac - 2 Adding as = 28 (4+1) = 25= 18(144) = 25= "=s: 11 s-c=28 "-28-c 3 1147-28x2 = C = 77-56-6. DE 2=3= 15 miles | hour boat in Speed of store water water = 5.5 miles , hour speed of current les miles thour 255 miles 287