28-06-2020
Mathematics

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Using the letters from the word ‘TRAPEZIUM’, how many combinations 5 letters can be formed such that they have exactly 3 consonants

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MathPhys MathPhys

28-06-2020

Answer:

60

Step-by-step explanation:

TRAPEZIUM has 9 letters. 5 are consonants and 4 are vowels.

The number of possible combinations is:

₅C₃ × ₄C₂

10 × 6

60

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