a) first find how many numbers are divisible by 5 and 7 separately add them and subtract that are divisible by both 7 and 5 ie 35.the result subtract from 1000 to get the answer to your first question
nos. divisible by 5 . last no. div by 5 is 995 .hence we have 995 = 0 + ( n-1) 5 which gives 200 .
last no div by 7 is 994 .hence 994 = 0+ ( n-1) 7 which gives n = 143 .
nos div by both 5 and 7 .last no div by 35 is 980.
980 = 0+ (n-1) 35 which gives n= 29
hence there are 200+ 143- 29 = 314 numbers div by 5 or 7
a) not div by 5or 7 = 1000- 314 = 686
b)div by 5 and7 =29
c) div by 5 or 7 = 314
d) div by 5 and not by 7 = 200-29 = 171
so answer is 686
Amit singh
There are 98 numbers are between 1 and 100 that are divisible by five.
There are 25 numbers between 101 and 201 that are divisible by four.
There are a total of 14 numbers between 0 & 100 that are divisible by 7.
There are nine numbers between 10 and 100 that are evenly divisible by 11.
There are 66 numbers between 1 and 100 that are divisible by two or three.
111 numbers between 5 and 1000 are divisible by 9
between 1 and 600 inclusive there are:300 numbers divisible by 2200 numbers divisible by 3100 numbers divisible by both 2 and 3400 numbers divisible by 2 or 3.
500 numbers are divisible by 2.
To find the numbers between 1 and 100 inclusive that are divisible by either 9 or 4, we first determine how many numbers are divisible by 9 and how many are divisible by 4. There are 11 numbers divisible by 9 (9, 18, 27, ..., 99) and 25 numbers divisible by 4 (4, 8, 12, ..., 100). However, we must be careful not to double-count numbers divisible by both 9 and 4 (36, 72). Therefore, the total number of numbers divisible by 9 or 4 between 1 and 100 inclusive is 11 + 25 - 2 = 34.
There are 98 numbers are between 1 and 100 that are divisible by five.
There are 89 numbers between 1 and 180 that are divisible by two.
There are 89,999 numbers between 100,000 and 999,999 that are divisible by 10.
There are 25 numbers between 101 and 201 that are divisible by four.
There are 22 numbers between 400 and 600 that are divisible by nine.
There are 29 numbers between 1 and 150 that are divisible by five.
There are 66 numbers between 1 and 1,000 that are divisible by 15.
There are a total of 14 numbers between 0 & 100 that are divisible by 7.