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Ratio answers

June 15, 2017

Workout

Question 1:

(a)    £8  £12           (b)   5cm    10cm            (c)    £6    £18           (d)   20 sweets  15 sweets

(e)   33g   22g         (f)   9kg   45kg                (g)   £60   £150         (h)   50 hours   70 hours

(i)    105m   245m    (j)  72°  288°

Question 2:

(a)  £39   £65        (b)  138 miles  23 miles    (c)  70ml   245ml     (d)   $200  $450

(e)  £352  £448     (f)  90kg  1110kg        (g)  €442  €68          (h)  124mm  992mm

Question 3:

(a)  £5  £15  £20     (b)  14ml  21ml  28ml     (c)   16p  32p  40p

(d)  40°  40°  100°    (e)  $11  $22  $132      (f)  120cm  160cm  80cm  360cm

Question 4:

(a)  400m 600m  (or 0.4km 0.6km)          (b)  180cm  20cm  (or 1.8m 0.2m)

(c)  8 hours 16 hours (or 1/3 day 2/3day)   (d)  96 seconds 144 seconds (or 1.6 min 2.4 min)

(e)  £1.20  £4.80                                            (f)  €3.50  €8.50

Question 5:

(a)  2.5ml  7.5ml          (b)  6.8g    10.2g         (c)  129.375ml   215.625ml

(d)  £81.25  £178.75     (e)  12.888…°  45.111…°   (f)  97.777… s  244.444…s  537.777… s

Apply

Question 1:  12 red sweets

Question 2:  Liam £15 and Nathan £45

Question 3:  45 children

Question 4:  (a) 50kg   (b) 100kg  (c) 150kg

Question 5: (a) 30° 30°  120°    (b) Isosceles

Question 6:  (a)  64 blue beads   (b) 1/5       (c)  80%

Question 7:  (a) 28 is not divisible by 5        (b)  any multiple of 5 (perhaps 35 or less)

Question 8:  £19800

Question 9:   18 boys study Spanish

Question 10:  262 votes

Question 11:  £2.64

Question 12:  96 chocolate, 24 strawberry, 32 vanilla

Question 13:  147 black cars

Question 14:  250 stayed in caravans

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