The maximum capacity of three containers is equal to the HCF of 403, 434 and 465.
403 = 1 × 13 × 31 = 131 × 311
434 = 1 × 2 × 7 × 31 = 21 × 71 × 311
465 = 1 × 3 × 5 × 31 = 31 × 51 × 311
HCF of 403, 434 and 465 = 311 = 31
Hence, the maximum capacity of a container that can measure the diesel of three containers exact number of times is 31 litres