£770 is divided between Mark, Henry & Gavin so that Mark gets twice as much as Henry, and Henry gets three times as much as Gavin. How much does Henry get?

£231 [Henry]

Step-by-step explanation:

Gavin= y

Henry= 3 x y= 3y

Mark= 2 x 3y= 6y

6y+3y+y= 10y

Henry:

*( 3y/10y ) x 770= ?

↓

* 'y' gets cancelled out during the division.

∴ (3/10) x 770 → 10 and 770 get cancelled out to give 77

⇒ 3x77= 231

(Ans) £231

85.3-64 = 21.3

so laura has already added 85.3 grams of chocolate powder and she has gone over the amount specified in the recipe by 21.3 grams

hope i ! have a great  day!