Answers

2015-08-01T19:34:07+05:30
Multiples of 4 between 17 and 61 : 20 , 24, 28, 32, 36, 40, 44, 48, 52, 56, 60.
in this the no. that is divisible by 7 are : 28 and 56
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2015-08-01T20:07:05+05:30
Set X = Multiples of 4 between 17 ,61 = 20,24,28,32,36,40,44,48,52,56,60
Set Y = Multiples of 7 between 17, 61 = 21,28,35,42,49,56


X U Y= Z
Cross repeating numbers in Z ⇒ 28,56 = Set A

Set A = Multiples of 4 between 17 and 61 divisible by 7 = 28,56

Ans: 28 and 56
1 5 1