book Maths Puzzle Numerical Ability

3X+12y > 4

my work
12 y > -3X+ 4
divide it all by 12

y > -1/4X + 1/3

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book Other Question

An infinite geometric series has 1 and 1/5 as its first two terms: 1,1/5,1/25,1/125,..... What is the sum, S, of the infinite series?
a)1/25
b)1/4
c)1
d)5/4
divide
9 5
50 P q
_____________________________
2
10 pq