How many arrangements of the letters of the word ‘DAUGHTER’ begin and end with a vowel?
Correct answer C. 4320
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Maths MCQs & Aptitude MCQs
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In how many ways can the letters of the word ‘APPLE’ be arranged so that the two Ps are always together?
Correct answer B. 24
In how many ways can the letters of the word ‘ARRANGE’ be arranged so that the two Rs are not together?
Correct answer A. 900
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A candidate must answer 6 out of 9 questions, and the first 2 questions are compulsory. In how many ways can the candidate choose the questions?
Correct answer B. 35
A paper has two sections of 5 questions each. A student must answer 4 questions, taking at least one from each section. In how many ways can the student choose?
Correct answer A. 200
In how many ways can 5 different prizes be given to 3 students if a student may receive any number of prizes?
Correct answer A. 243
In how many ways can a captain and a vice-captain be chosen from a squad of 11 players?
Correct answer D. 110
In how many different ways can the letters of the word ‘GARDEN’ be arranged?
Correct answer A. 720
In how many different ways can the letters of the word ‘BALLOON’ be arranged?
Correct answer B. 1260
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In how many different ways can the letters of the word ‘SUCCESS’ be arranged?
Correct answer A. 420
In how many ways can the letters of the word ‘PENCIL’ be arranged so that the vowels always come together?
Correct answer D. 240
How many arrangements of the letters of the word ‘MONDAY’ begin with the letter M?
Correct answer C. 120
In how many ways can the letters of the word ‘STRANGE’ be arranged so that the vowels are never together?
Correct answer A. 3600
In how many ways can the letters of the word ‘ORANGE’ be arranged so that the vowels occupy only the odd positions?
Correct answer A. 36
In how many different ways can the letters of the word ‘BANANA’ be arranged?
Correct answer B. 60
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A 25 litre mixture contains 40% alcohol. How many litres of pure alcohol must be added to make the mixture 50% alcohol?
Correct answer B. 5 litres
A 50 litre mixture has milk and water in the ratio 3 : 2. If 10 litres of the mixture are removed and replaced with water, what is the new ratio of milk to water?
Correct answer D. 12:13
A grocer mixes two varieties of rice costing Rs. 30 and Rs. 40 per kg in the ratio 3 : 2 and sells the mixture at Rs. 42.50 per kg. What is his profit percentage?
Correct answer A. 25%
In what ratio must water be mixed with a cleaning liquid costing Rs. 84 per litre so that the mixture is worth Rs. 72 per litre?
Correct answer D. 1:6
Two varieties of rice costing Rs. 56 and Rs. 76 per kg are mixed to make 60 kg of a mixture worth Rs. 64 per kg. How many kg of the cheaper variety are used?
Correct answer B. 36 kg