Question

How many numbers under 10000 are divisible by 15 and 20?

Answer 1

Given numbers are 15,20,25.

LCM of 15 = 3 * 15

LCM of 20 = 2 * 2 * 5

LCM of 25 = 5 * 5

LCM of 15,20,25 = 2 * 2 * 3 * 5 * 5

                            = 300.

Therefore the numbers less than 10000 divisible by 15,20,25 = 10000/300

                                                                                                        = 33.33

Therefore the required answer is 33.

Hope this helps!

Answer 2

Answer:

Answer=33.33........