Question
How many five digit numbers can be formed using the
digits 0, 1, 2, 3, 4 and 5 which are divisible by 5, without repeating the digits?Solution
CASE 1: If last digit is 0, number of 5 digit can be formed by using the 1, 2,3,4& 5 = 5× 4×3×2 = 120 CASE 2: If last digit is 5, number of 5 digit can be formed by using the 0, 1, 2, 3 & 4 = 4× 4×3×2 = 96 (as a number can never start with 0) So total number of digits = 120 + 96 = 216
If first and last digit of each number is multiplied and then the product is added to the sum of the middle two digits of the number, which resultant nu...
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relate...
How many 6s are there in the following number series which are preceded by 4 and followed by 8.
2 4 6 8 4 2 8 6 4 8 7 3 8 6 4 2 4 6 8 7 4 6 9 4
Read the directions carefully and answer the following question.
If in the number ‘ 9887532691 ’, the even digits are shifted to the next d...
196 49 21
18 x 9
If ‘ x' is resultant of the first row, what is the resultant of the second row?
...Select the options in which the numbers are related in the same way as are the numbers of the following set.
(541, 14, 737)
If all the numbers are arranged in descending order from right to left, which of the following will be the product of the all three digits of the number...
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
- This question is based on the five, three-digit numbers given below.
(Left) 847 538 628 482 497 (Right)
(Example- 847 – First digit = 8, ... Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is relat...
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