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wiskdls
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wiskdls
Score
173
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Questions
44
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1
44 Questions
1 Answers
0
725
1
+173
Math
We call a number odd looking if all of its digits are odd. How many four-digit odd-looking numbers are there?
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wiskdls
Apr 24, 2018
0
549
1
+173
Question
How many numbers are in the list:
6,10,11,14,15...,94,95,98
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wiskdls
Apr 22, 2018
0
785
1
+173
Question
How many 4-digit numbers are there in base 5?
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wiskdls
Apr 22, 2018
0
599
1
+173
Question
Determine the number of palindromes with 7 digits.
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wiskdls
Apr 22, 2018
-1
3001
1
+173
Maths
A teacher has 15 students in his class, 8 girls and 7 boys. He wants to seat them in three rows of five, but knows that if any row has two girls or two boys sitting next to each other, they will talk and won't pay attention. How many seating arrangements
read more ..
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wiskdls
Apr 22, 2018
0
865
1
+173
Maths
Find the number of five-digit multiples of 5, where all the digits are different, and the second digit (from the left) is odd.
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wiskdls
Apr 22, 2018
0
1922
1
+173
Maths
A class photo is being taken of six students, sitting in a row. Three of the students are Jamie, Marshall, and Susan, and Jamie wants to sit between Marshall and Susan. (This also means that Jamie is next to both Marshall and Susan.) How many arrangements
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wiskdls
Apr 22, 2018
0
1831
1
+173
math
The International Civil Aviation Organization (ICAO) assigns four-letter codes to airports. For example, the code for Kahului Airport in Hawaii is PHOG.
Airports in northern Europe have codes that begin with E, and airports in southern Europe
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wiskdls
Apr 21, 2018
0
846
1
+173
math
A car has one driver's seat and four different passenger seats. A group of five students wants to use the car to go to school, but only two of those five students are legally allowed to drive the car. What is the number of ways that the five students can
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wiskdls
Apr 21, 2018
0
1798
1
+173
math
A class has four girls and five boys. How many ways can everyone be arranged in a row, so that all four girls are next to each other?
GYanggg
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wiskdls
Apr 21, 2018
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#2
+173
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@Guest any number number of letters
wiskdls
Apr 15, 2018
