Adam, Rob and Clare share some sweets in the ratio 4:5:8. Clare gets 12 more sweets than Rob. How many sweets did Adam get?

16 sweets

Step-by-step explanation:

Adam : Rob : Clare

4 : 5 : 8

Find the difference in units of Rob and Claire.

8 - 5 = 3 units

3 units = 12

1 unit = 12 ÷ 3 = 4

4 units = 4 x 4 = 16

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47