+0  
 
0
344
1
avatar+46 

Question 3 : A survey conducted for 50 members of staff of Cadbury plc shows that 30 of them have degree while 35 possess H.N.D. if 8 of the employees possess neither of the certificate how many have both degree and H.N.D
 23
 16
 24
 18

 Jun 5, 2017
 #1
avatar+95175 
+2

50-8=42.      So 42 have something

 

Let B be the number with both

Degree only = 30-B

HND only     = 35-B

 

so

30-B   +   35-B     +B   = 42

65-B=42

B=23

 

Or you could have gone backwards and just checked the answers. :)

 Jun 5, 2017

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