6th Maths : Term 1 Unit 6 : Information Processing
Exercise 6.1
Questions with Answers, Solution
1. Suppose, you have two shorts, one is black and the other one is blue; three shirts which are in 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.
Answer:
No. of shorts − 2 ———————— No. of shirts − 3
Blue − 1; Black − 1 ——————— Blue − 1 ; white−1 ; red − 1
Different combinations −> different in combinations.
Short:
Blue, Blue, Black
Black, Black, Blue
Shirt:
White, Red, Blue
White, Red, Blue
Answer: ‘6’ combinations
2. You 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.
Answer:
Blocks − Red − 2 − Blue – 2
Possible towers:
- R R B B
- R B R B
- B R B R
- B R R B
- B B R R
- R B B R
Answer: ‘6’ possibilities.
Answers:
Exercise 6.1
(1) 6 combinations are possible,
Black − White ; Black − Blue ; Black − Red
Blue − white ; Blue − Blue ; Blue − Red
(2) 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