answer plz this is important
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Step-by-step explanation:
G= 23
D= 8
GnD= 5
given
no. of total students = 40
G = 28
D = 13
4 do not wear glasses nor diving lences
So..
G = 23
D = 8
GnH = 5
and 4 do not wear glasses nor diving glasses
Sum of all the nos. = G + H + GnH + 4
= 23+8+5+4
= 40
Hope it helped u.. ❤️
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