Quantitative Ability Questions

Quantitative Ability Questions- Direction for next 2 Quantitative Ability Questions: Answer the following quantitative ability questions on the basis of data given below.
x , y , z are positive integers such that x + y + z = 100,

1. Find the probability that x > 20, y > 10 , z > 20 .
a) 23/99
b) 1/7
c) 7/33
d) 1/8
e) 8/33

2. Find the number of possible solutions for the equation in the previous question, If 25 < x < 51, y > 10 and z > 15.
a) 900
b) 1176
c) 4075
d) 236

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