Your Progress - Chapter 60% complete
1Book Back Questions2 questions
Q.1Suppose, you have two pairs of shorts, one is black and the other one is blue; three shirts which are white, blue and red. You again wish to make different combinations, but you always want to make sure that the shorts and shirt that you wear are of different colours. List and check how many combinations are possible now.v
Answer:
6 combinations are possible
Black-White
Black-Blue
Black-Red
Blue-White
Blue-Blue
Blue-Red
Q.2You have two red and two blue blocks. How many different towers can you build that are four blocks high using these blocks? List all the possibilities.v
Answer:
6 Possibilities,
R – B – R – B
R – R – B – B
B – R – R – B
B – R – B – R
B – B – R – R
R – B – B – R