Of the 40 students in a class , 2/5 are girls. Of the girls , 1/4 wear glasses. How many girls do not wear glasses
1 answer:
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Answer:
Step-by-step explanation:
Since, The LCM of numbers given numbers ,
,
and
is
.
Thus, the number that gives 1 as reminder and is the multiple of 7 is
Where n is any positive integer,
Since, For ,
The number is,
Which is divisible by .
Thus, the required number is 301.
Note : For n = 1, 2 3 and 4, numbers are 61, 121, 181 and 241
But they are not the multiple of 7.