=5P4=(5×4×3×2)=120. Particular case To get an even number, the unit's digit is 2 or 4. Thus, there are 2 ways of filling remaining 3 places with the remaining 4 digits =4P3=(4×3×2)=24. Hence, the required number of even numbers =(2×24)=48. Show More ...
Find the number of numbers of four digits that can be made from the digits 0,1,2,3,4,5 if digits can be repearted in the same num,ber. How many of these numbers have at least one digit repeated? Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT ...
A four-digit number (abcd) where none of the digits are zero (The numbers can be repeated).If (ab)<20,(bc)<21,(cd)<22,we call this four digit number a“good number”.How many good numbers are there in total?一个各位数字都不是0的四位数(abcd)(数字可重复),如果满足(ab)<20,(bc...
• The 4-digit numbers at the back of your card,• Press the keys for how much money you want to withdraw.• Think of your secret bank card number and make sure you keep it in this 6-digit number right.• Follow the instructions in the conversation card that appears in the cen...
4.the particular numeral assigned to an object to designate its place in a series:a house number; a license number. 5.one of a series of things distinguished by or marked with numerals. 6.a certain collection or quantity not precisely reckoned, but considerable:a number of times. ...
Find the number of 4 digit numbers that can be formed using the digits 1,2,3,4,5 if no digit is repeated. How many of these will be even? View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium ...
Find the number of four-digit numbers that can be formed using the digits 1,2,5,7,4 and 6, if every digit can occur at most once in any number. View Solution Free Ncert Solutions English Medium NCERT Solutions NCERT Solutions for Class 12 English Medium ...
Use the numbers 1, 2, 3, 4, 5, 6, 7, 8 to make two four−digit numbers without repeating digits. The largest possible product would be × . 相关知识点: 试题来源: 解析 8531;7642 To make the largest result, when the number of digits is fixed, you should make the digi...
Divide a three-digit number into 4 natural numbers, such that the first natural number plus 5, the second natural number minus 5, the third natural number multiplied by 5, the fourth natural number divided by five, are all equal. Then the sum of all the three-digit numbers satisfying the...
Use a zero to round the number to the nearest single digit. Tenths Type=ROUND(A1,1)which equals823.8 Use a positive number here to round the number to the number of decimal points you specify. The same thing applies to the next two formulas that round to hundredths and thou...