Wipro Company Numerical Ability Arithmetic

The average weight of 5 melons is 40. If my melon weighs 34, by how much will the average weight of the melons change once I add my own melon?
a)Up by 2
b)Up by 1
c)Down by 1
d)Down by 2
e)Down by 1.4

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Wipro Other Question

Jamie and Jane are painting houses. Jamie can paint a house in 3 days and Jane can paint a house in 4. How many days will it take them to paint 14 houses together?
a)7
b)13
c)14
d)19
e)24 60 percent of my pets are birds, and the rest are giraffes. What’s the ratio of giraffes to birds?
a)3:5
b)3:4
c)2:3
d)1:6
e)2:5