https://www.gregmat.com/problems/quant?problem=a-fan-has-forty-equally-spaced-fins
Can someone quickly explain if at 180 degree point we have blade 1 matching with blade 20, then blade 3 would be match to blade 22, unless there is such “blade 0”?
There is no “blade 0” hence Blade 1 matches Blade 21 and so forth.
Question said blades are numbered from Blade 1 to 40.