Question
How many numbers from 1 to 500 (both included) are
divisible by both 4 and 6 but not divisible by 8?Solution
Numbers divisible by both 4 and 6 are divisible by LCM(4, 6) = 12 Count of multiples of 12 up to 500: = ⌊500 / 12⌋ = 41 Numbers divisible by 12 and also by 8 are divisible by LCM(12, 8) = 24 Count of multiples of 24 up to 500: = ⌊500 / 24⌋ = 20 Required numbers = 41 − 20 = 21 Answer: 21 numbers
Who among the following goes on Wednesday?
- P and Q started a business with Rs. 6000 and Rs. 7500 respectively. Q remained in the business 4 months longer than P. If P received Rs. 1800 from the tota...
Statements : X < Q = I ≤ Y < U ≤ S = W > J = B > R
Conclusions :
I. X < W
II. S > R
- ‘X’ and ‘Y’ together can complete a task in 18 hours. If ‘Y’ alone takes 45 hours to complete the same task, how long will ‘X’ take to do i...
How is Q related to Y?
How many people are standing between G and D in a straight line of 15 people (Note: All are standing in a straight line facing north.)?
I. F stan...
How many symbols are immediately followed by a number?
Three statements are given followed by three conclusions numbered I, II & III. Assuming the statements to be true, even if they seem to be at variance ...
If Rahul is 20th in the queue from either end then, how many people are there in the queue?
If all the prime digits of the number 6493858573 are written first (in increasing order) followed by even digits(in increasing order) and then odd digit...
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