The number of ABC balls B is two fifths less than that of a ball, C ball is two thirds more than that of a ball, and a ball has 45 balls. How many balls are there altogether

The number of ABC balls B is two fifths less than that of a ball, C ball is two thirds more than that of a ball, and a ball has 45 balls. How many balls are there altogether

A45
B = 45 times three fifths = 27
C = 45 + 45 times 2 / 3 = 75

It's 13 kilos more than 12 kilos______ Kg. 12 kg ratio______ The kilogram is less than 13

(1) 12 × (1 + 13), = 12 × 43, = 16 (kg); answer: more than 12 kg, 13 is 16 kg. (2) 12 △ 1-13, = 12 △ 23, = 12 × 32, = 18 (kg); answer: 12 kg is 13 less than 18 kg

60 kg is one third more than () kg; () kg is one fourth more than 80 kg; and () kg is one fifth more than 60 kg

60 kg is one third more than (45) kg;
(100) kg is a quarter more than 80 kg;
One fifth more than 60 kg is (72) kg

12 kg is two-thirds more than ()

12÷（1+2/3）＝36/5
12 kg is two-thirds more than 7.2 kg