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Sciences AllOther (161) VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 15 : A motel cleaner has 8 master keys at home to open all the rooms in a large motel. Each room can be opened by just 1 of these keys. If 40 % of the rooms are left unlocked, what is the probability that the cleaner can get into a specific room if he selects 3 keys at random before leaving home to go to work? (A) 5 / 8, (B) 5 / 16, (C) 31 / 40, (D) 3 / 20, (E) 19 / 40.
1 1827VOLUNTEER TRAINING FOR DISADVANTAGED IN MATHS – QUESTION 16 : A committee of 6 people is to be chosen from 8 students and 6 teachers so that it contains at least 3 students and at least 2 teachers. The number of ways this can be done is – (A) 1050, (B) 1120, (C) 7560, (D) 840, (E) 2170.
1 8993
What is optical isomerism? Which compounds exhibit optical isomerism?
What is the quaternary structure of a protein?
give the co-ordination number of cscl?
Science is both a process and product-Substantiate
What are intraspecific ecological interactions?
Explain the process of Yeast Liquid culture ?
Prove that the function defined in example 24 is differentiable at (0,0).
composition of gun metal
What are isotypes?
What are respectively some remarkable functions of reverse transcriptase?
What is geo-synchronous point, and its specialty?
How much empty space is found in globular proteins?
What are abiotic factors?
What are reflecting nebulae?
How far away from earth, is space?