I hope this is correct :- 35 friends x 24 slices = 840 840 divide by 70 = 12 slices each cake (answer) Work backwards 12 slices x 70 cakes = 840 slices 840 slices divided by 35 fiends = 24 slices each.

We can also consider that each friend received 2 cakes (70 divided by 35). Since two cakes made up 24 slices, each cake was cut into 12 slices,

Thanks.😊

76/ by 3 =23.3334,76+23.3334=99.3334x2 =198.6668.

Good model, Caleb.

Oops. The above working was contributed by my boy. Have not tried the question myself. Sorry. He said he wanted to try when he saw the problem. Didn't know he'll post something.

Not to worry, Elaine. Your son is willing to stick his neck out and attempt the question. What more can we ask for?

Ha.. I shall discuss the problem with him tmr. Clearly illogical answer. Haha..

Just encourage him to try. :) That is how he can get further exposure and practice.

Agree Xavier. Thanks for the encouragement.

My boy tried the question again.

Good job to your son, Elaine. Always a happy occasion to see a child manage a concept. Another feather in his cap.

very long winded, but should be easy to understand

Thanks everyone.

My P3 son did this 😁. Hope it's correct !

Pauline Vong Nyit.....your son is so clever.....

Cynthia Lim only sometimes...

Must draw graph.

Just a variation to find the volume of R: add to 1905 ml these two volumes : 185 ml (the difference between P and R) and 475 ml (the difference between P and Q, 290ml + 185ml) to yield 2565 ml. Divide that by 3 and we get 855ml.

top + left ＝1.4 top + right ＝ 0.9 left + right ＝1.7 2(top + left + right) ＝ 1.4 + 0.9 + 1.7 ＝ 4 top + left + right ＝ 2 top ＝ 2 - 1.7 ＝ 0.3 left ＝ 2 - 0.9 ＝ 1.1 right ＝ 2 - 1.4 ＝ 0.6

Top=(1.4+0.9-1.7)/2=0.3 Left=1.4-0.3=1.1 Right=0.9-0.3=0.6

Mister Kim, most excellent display. Kudos.

Top - - - - - 0.3 - Bottom Left - - - - - 1.1 - Bottom Right - - - - - 0.6 "D