Albert is 120 cm tall, Imran is 135 cm tall and Siti is 150 cm tall. (a) Write the ratio Albert's height: Imran's height : Siti's height in its simplest form. (b) Albert, Imran and Siti are given some sweets to share in the ratio of their heights. Siti received 10 more sweets than Albert. Calculate the total amount of sweets that was given to them.​