75 rounded to the nearest ten is 80
80
75
The least number that can be rounded off to 80 to the nearest integer is 75.
80
80
80
You would round it down... to 80.
80
80
80
80
If x is the multiple of y then LCM of x and y is x. Here, 80 is the multiple of 10 therefore LCM of 10 & 80 is 80.