Higher Study | Arithmetic Ability

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Probability Triangles

Questions

What decimal of an hour is a second ?

How many times in a day, the hands of a clock are straight?

How many times are the hands of a clock at right angle in a day?

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd?

Which one of the following is not a prime number?

Which of the following trains is the fastest ?

Which of the following is not a condition of the binomial distribution?

Three unbiased coins are tossed. What is the probability of getting at most two heads?

Four dice are thrown simultaneously. Find the probability that all of them show the same face.

In a simultaneous throw of two dice, what is the probability of getting a doublet ?

In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?

In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?

A man walked diagonally across a square lot. Approximately, what was the percent saved by not walking along the edges?

In how many ways can the letters of the word EDUCATION be rearranged so that the relative position of the vowels and consonants remain the same as in the word EDUCATION?