An alphanumeric character is randomly selected from following sentence:
"Everybody is a genius.
But if you judge a fish by its ability to climb a tree,
it will live its whole life believing that it is stupid."
What is the probability that picked character is one of the following letters K or I or T or Y?
Note: Alphanumeric character means alphabet or number. Space and other characters should be ignored.
A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 42 years now, what was the son's age five years back?
P can do a work in 20 days. Q can do the same work in 12 days and R can do the same in 16 days. Q and R start the work and leave after 6 days. P finishes the remaining work in X days. What is the value of X?
OPtion
1) 5.0 days
2) 1.5 days
3) 1.75 days
4) 2.0 days
5) 2.25 days
6) 4.5 days
7) 2.5 days
8) 5.5 days
9) 6.0 days
10) None of these
Solution
Amount of work done by Q and R in 6 days = 6*(1/12 + 1/16) = 42/48 = 7/8
Amount of work remaining after 6 days = 1/8
Amount of work done by P in 1 day = 1/20
So for 1/20 work P takes 1 day
Hence for 1/8 work P would take (1/(1/20))*1/8 = 20/8 = 2.5 days
Simran went to buy 13 chocolates worth Rs. x. She gave Rs.500 rupee note to the shopkeeper to buy the chocolates then shopkeeper gave rest of the money in the denominations of 50 paise, 5 rupee, and 10 rupees. If the ratio of the number of coins is 16:19:15 respectively. Then what is the price of three chocolates?
Total number of prime numbers less than 70 = 19 => 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67
Number of positive outcomes i.e. number where at least one of its digit is 7 = 5
Arun bought a mobile with 25% discount on the labeled price. He sold the mobile for Rs.3200 with 20% profit on the labeled price. At what price did he buy the mobile?
Find the product of half of mean, twice of median and three times of mode (i.e. you need to find (1/2)*mean* 2*median * 3*mode) for the following list of values?
67 17 37
27 27 87
17 57
47 17
Mean = Sum of nos. / Count of numbers = 400/10 = 40
Median = Middle term when number are arranged in ascending order = 32
Mode = Number which is present maximum number of times = 17
Product = 1/2*40*2*32*17*3 = 65280
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