Question

Raju, Rahim and Richard visit an old - age home Every sunday. The rooms in the Home are numbered from 150 to 200 . Raju visits rooms with numbers that are multiple of 3 . Rahim visits rooms with multiple of 5 . Richard visits all the room. which rooms do all three of them visit?
Please explain it step - by - Step ​

Answer 1

Richard visits all the room.

Therefore,he will visit the rooms in which both Raju and Rahim visits.

Therefore to find out the rooms in which Raju anf Rahim both visits we should find the rooms which are multiples of both 3 and 5 i.e.,

150,165,180,195

Therefore all three of them visits in room with number 150,165,180,195.

TIP:YOU CAN NOTICE THAT THERE IS A GAP OF 15 AFTER EACH ROOM NUMBER WHICH CAN HELP AS A SHORTCUT.

3*5=15

150

150+15=165

165+15=180

180+15=195

ANSWER=150,165,180,195