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1. Let x, y and z are multiple of 6 then
6x, 6y and 6z are these numbers
as given
6x +6y +6z = 666
2. Let the number be x,
as given 3/4 of a number is 3/4*x
and 1/3 of that number is 1/3*x
3/4*x = 1/3 + 60
3. Let the number be x,
as given 10 times of a number is 10x
so x+10x = 264
4. Let two numbers be x and y then
as given ratio of these number be 4:7
then x:y = 4:7 >>>> x/y = 4/7
Now both the numbers are increased by 4 then the ratio is 3:5
so x +4: y+4 = 3:5 >>>> x+4/y+4 = 3/5
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