Question

21. In a group there are 21 children, 35 ladies and 49 gents. They all want to stay in same hotel. Find the
minimum number of rooms required for their stay so, that in each room equal number of members
stay with the condition that children, female and male stay in separate rooms.​

Answer 1

Answer:

7

Step-by-step explanation:

as 35 21 49 has the h.c.f 7

Answer 2

Answer will be 15

STEP BY STEP EXPLAINATION :

As written all the members in a room should be same and also,

children, female, and male stays in separate room

So,

Female = 7×5 = 35

Male = 7×7 = 49

Children = 7×3 = 21

As total rooms is 5+7+3 = 15

All conditions are also followed.

all male female children arr living seperately, and also all the rooms have equal number of members which is 7

ANSWER 15