Question

A gardener had a number of shrubs to plant in rows. at first he tried to plant 8,then 12 and then 16 in a row but he had always 3 shrubs left with him. on trying 7 he had none left. find the total number of shrubs.​

Answer 1

A gardener had a number of shrubs to plant in rows. At first he tried to plant 8, then 12 and then 16 in a row but he had always 3 shrubs left with him. On trying 7 he had none left. Total number of shrubs is given by

LCM(8, 12, 16) + 3 = 144 + 3 = 147 ANSWER

7 divides 147 so it is correct Answer.

Answer 2

Answer: 147

Step-by-step explanation: L.C.M of 8, 12, 16 = 48

Now, 48 * 1 + 3 = 51 - not divisible by 7

48 * 2 + 3 = 99 - not divisible by 7

48 * 3 + 3 = 147 - not divisible by 7

Required number = 147