HSC Arts Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Mathematics

How many numbers are there between 1 and 1000 (both inclusive) which are divisible neither by 2 nor by 5?

How many strings can be formed using the letters of the word LOTUS if the word either starts with L or ends with S?

How many strings can be formed using the letters of the word LOTUS if the word neither starts with L nor ends with S?

Count the total number of ways of answering 6 objective type questions, each question having 4 choices

In how many ways 10 pigeons can be placed in 3 different pigeon holes?

Find the number of ways of distributing 12 distinct prizes to 10 students?

Find the value of 6!

Find the value of 4! + 5!

Find the value of 3! – 2!

Find the value of 3! × 2!

Find the value of `(12!)/(9! xx 3!)`

Find the value of `(("n" + 3)!)/(("n" + 1)!)`

Evaluate `("n"!)/("r"!("n" - "r")!)` when n = 6, r = 2

Evaluate `("n"!)/("r"!("n" - "r")!)` when n = 10, r = 3

Evaluate `("n"!)/("r"!("n" - "r")!)` when for any n with r = 2

Find the value of n if (n + 1)! = 20(n − 1)!

Find the value of n if `1/(8!) + 1/(9!) = "n"/(10!)`

Choose the correct alternative:
The sum of the digits at the 10^th place of all numbers formed with the help of 2, 4, 5, 7 taken all at a time is

Choose the correct alternative:
In an examination there are three multiple choice questions and each question has 5 choices. Number of ways in which a student can fail to get all answer correct i

Choose the correct alternative:
The number of ways in which the following prize be given to a class of 30 boys first and second in mathematics, first and second in physics, first in chemistry and first in English is