CameraIcon

SearchIcon

MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Quantitative Aptitude

Combination

A code word i...

Question

A code word is to consist of 2 English alphabets followed by 2 distinct numbers between 1 and 9. For example, CA23 is a code word. How many such code words are there?

A

615800

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

46800

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

719500

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

410800

No worries! We‘ve got your back. Try BYJU‘S free classes today!

E

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B 46800
(i) There are in all 26 English alphabets. We have to choose 2 distinct alphabets. First alphabet can be selected in 26 ways. Second alphabet can be selected in 25 ways. Again, out of 9 digits (1 to 9), first digit can be selected in 9 ways. Second digit can be selected in 8 ways Thus, the number of distinct codes $26 \times 25 \times 9 \times 8 = 46800.$

Suggest Corrections

thumbs-up

13

Similar questions

Q. A code word is to consist of two English alphabets followed by two distinct numbers between

1

9

C A 23

is a code word. How many such code words are there?

Q. A code word consists of two distinct English alphabets followed by two distinct numbers from

1

9

. For example, AK47 is code word. How many such words are there?

how many of them will end with an even number.

Q. A code word should consist of two English distinct capital alphabets followed by two distinct digits from

1

9

M H 23

is a code word.
(a) How many such code words are available ?
(b) How many of them end with an even integers?

A code word of 4 letters consists of two distinct consonants from the English alphabets followed by two digits from 1 to 9, with repetition allowed in digits. If the number of code words so formed ending with an even digit is $432 \times k$ , then $k$ is equal to

Q. A code word consists of three letters of the English alphabet followed by two digits of the decimal system. If neither letter nor digit is repeated in any code word, then the total number of code words is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Permutation

QUANTITATIVE APTITUDE

Watch in App

explore_more_icon

Explore more

Other Quantitative Aptitude

Join BYJU'S Learning Program

CrossIcon