Elitmus Exam Numerical Ability Number System

Is (p+r)(q+r) odd?
1. p is odd, q is odd.
2. q is odd, r is odd.
Which is correct?
a-1 only
b-2 only
c-Both 1 & 2
d-Neither 1 nor 2

Read Solution (Total 14)

Elitmus Other Question

How many maximum number of factors are there for numbers from 1 to 600
options:
a-24
b-32
c-??
d-??
if a distance of 50m is covered in 1 min,that 90 m in 2 min,and 130 m in 3 min.find the distance covered in 15 mins.