SSC Government Jobs Exams Numerical Ability Averages

The average the three numbers is 154. The
first number is twice the second and the
second number is twice the third. The first
number is

Read Solution (Total 1)

here x=2y
y=2z
therefore 4z=2z=z
so z=66 third number
y=132 second number
x=264 first number
11 years agoHelpfull: Yes(0) No(0)

SSC Other Question

In a laboratory, two bottles contain
mixture of acid and water in the ratio 2 : 5
in the first bottle and 7 : 3 in the second.
The ratio in which the contents of these
two bottles be mixed such that the new
mixture has acid and water in the ratio 2
: 3 is The average salary of all the staff in an
office of a corporate house is Rs. 5,000.
The average salary of the officers is Rs.
14,000 and that of the rest is Rs. 4,000. If
the total number of staff is 500, the
number of officers is