TCS
Company
Numerical Ability
Probability
An event manager has ten patterns of chairs and eight patterns of tables. In how many ways can he make a pair of table and chair?
Option
1) 100
2) 80
3) 110
4) 64
Read Solution (Total 3)
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- Answer is 2
suppose ten pattern of chairs is A ,B,C,D,E,F,G,H,I,J.
and eight pattern of table is 1.2.3.4.5.6.7,8
then the pair look like this A1,A2,A3............A8=8
and B1,B2,B3.............B8=8
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.
.
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so on j1,j2,j3..............j8=8
finally 8 * 10=80
So Answer is 80 - 9 years agoHelpfull: Yes(8) No(0)
- = number of ways of choosing 1 pattern of chairs X number of ways of choosing 1 pattern of table
= 10 X 8
= 80 - 9 years agoHelpfull: Yes(1) No(0)
- Since there are 10 chairs and each chair have 8 options the number of ways in which they can be paired is 10 × 8 = 80.
- 6 years agoHelpfull: Yes(1) No(0)
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