Question
Find the wrong number in the given number series.
5, 10, 30, 90, 540, 3240Solution
ATQ,
5 × 2 = 10
10 × 3 = 30
30 × 4 = 120
120 × 5 = 600
600 × 6 = 3600
So, 120 should be in place of 90
Find the difference between minimum and maximum value of 'j' such that '7j5302' is always divisible by 3.
Raj scored 140 marks in a test getting 3 marks for each right answer and losing 1 mark for each wrong answer, had 4 marks been awarded for each correct...
Four numbers P, Q, R, S satisfy: Q is 25% less than P, Q:R = 9:10, and R:S = 5:8. If the average of P, Q, R, S is 94, find (S – P).
The ratio between the sum of the digits of a two-digit number and that two-digit number is 1 : 5. If the digit in the unit's plac...
Find the number of Digits required to write down the number of Pages in a 500 page book?
What is the smallest number that must be added to 750, so that it becomes completely divisible by 42?
- The product of three consecutive natural numbers is 46,620. What is the sum of these three numbers?
- A number '71945b' is divisible by 6, but not by 5. What is the value of (b² + 1)?
In a question of division, if dividend is 21 times of remainder and quotient is 1/2 of divisor, if remainder is least multiple of 2 and 5 both then find...
Find the greatest common divisor of 1540, 2310, and 3850.
