Question
A team of 10 members is to be formed from 9 engineers and 6
doctors. Find the number of ways the team can be formed with at least 8 engineers.Solution
Case I: 8 engineers and 2 doctors
Number of ways = 9C8 Ă— 6C2 = 9 Ă— 15 = 135 ways
Case II: 9 engineers and 1 doctor
Number of ways = 9C9 Ă— 6C1 = 1 Ă— 6 = 6 ways
Total number of ways = 135 + 6 = 141 ways
Which is the precursor of ethylene?
Botanical name of jowar is:
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Which floral mechanism helps promote autogamy (self-pollination) in lettuce?
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The main host tree of Eri Silkworm isÂ
Saline soil having
(A) pH<8.5
(B) E.C.>4
(C) ESP<15
(D) Physical condition - Flocculated
Choose the correct answer from the options given below:
Which statement is true?
Cotton and pigeon pea are:
