Question
How many 5-digit numbers can be formed using digits
1–7 such that digits are odd-even-odd-even-odd?Solution
ATQ,
Odd digits = 1,3,5,7 = 4; Even = 2,4,6 = 3. Pattern: O-E-O-E-O → 3 odd used, 2 even used. Odd: 4P3 = 24, Even: 3P2 = 6 → Total = 24×6=144 → 144 numbers.
In the question below, a sentence is given which has a blank, meaning something has been omitted. From the options below, choose the correct combinatio...
When requested by a student, family members were _____________ of the difficulties faced by the student.
Choose the correct phrase or expression to complete the sentence.
I have never ________ in the Raj Bhavan, but I hope to very soon.
In spite of the fact that he ___ exhausted from a long day at work, he ___ to stay up late to finish the project that was due the next day.
...Given below is a sentence with one blank in each. Below each sentence are given four words among which one word might fill the blank. If none of the wo...
In the question given below, one word has been omitted. Choose the most appropriate word from the given options that can fill the blank and make the se...
A) Authentic B) Credible C) Fastidious D) Spurious
Fill in the blank with the correct option.__ universities offer a wide range of courses for foreign students.
China apart, all major countries have at least __________________ considered the step of converting the state into two Union territories and how this wa...
Select the most appropriate option to fill in the blank.
The opera singer's performance was met with ___________ applause, filling the theatre ...
