02/10/2021
Those that went through my example in my video on money and finance would be well equipped to answer 2021 psle question below. Well done to those who have the prerequisite skill through guidance and tuition.
“Helen and Ivan had the same number of coins. Helen had a number of 50-cent coins and 64 20-cent coins. These coins had a mass of 1.134 kg. Ivan had a number of 50-cent coins and 104 20-cent coins .
(a) Who has more money in coins and by how much?
(b) given that each 50-cent coin is 2.7g more heavier than a 20-cent coin, what is the mass of Ivan’s coins in kilograms?"