Mathematics Materials for Postal Assistant / Sorting Assistant Exam 2014

1. Find the value of 1/(3+1/(3+1/(3-1/3)))

A.) 3/10 B.) 10/3
C.) 27/89 D.) 89/27

Answer: Option 'C'
1/[3 + (1/(3+1/(3 - 1/3)))]
=> 1/[3 + 1/(3 + 1/(8/3))]
=> 1/[3 + 1/(3 + 3/8)]
=> 1/[3 + 8/27]
=> 1/(89/27)
=> 27/89

2. Find the value of
 
A.) 3½ 99; B.) 34/99
C.) 2.131313 D.) 3.141414

Answer: Option 'D'
simplification 1
6/9 + 7/9 + 9/9 + 69/99
2/3 + 7/9 + 1 + 69/99
(66 + 77 + 99 + 69)/99
311/99 => 3.141414

3. Find the value of
((0.1)3 + (0.6)3 + (0.7)3 − (0.3)(0.6)(0.7))/((0.1)2 + (0.6)2 + (0.7)2 − 0.006 − 0.42 − 0.07)

A.) 14/10 B.) 1.35
C.) 13/10 D.) 0

Answer: Option 'A'
((0.1)3 + (0.6)3 + (0.7)3 − (0.3)(0.6)(0.7))/((0.1)2 + (0.6)2 + (0.7)2 − 0.006 − 0.42 − 0.07)
=> (0.1 + 0.6 + 0.7)3/(0.1 + 0.6 + 0.7)2
=> 0.1 + 0.6 + 0.7 => 1.4 = 14/10

4. Solve(0.76 × 0.76 × 0.76 − 0.008)/(0.76 × 0.76 + 0.76 × 0.2 + 0.04)

A.) 0.56 B.) 0.65
C.) 0.54 D.) 0.45

Answer: Option 'A'

5. Find the value of


A.) 1.5 B.) -1.5
C.) 1 D.) 0

Answer: Option 'D'
simplification 5
11/30 − [1/6 + 1/5 + [7/12 − 7/12]]
11/30 − [1/6 + 1/5 + [0]]
11/30 − [(5 + 6)/30]
11/30 − 11/30 = 0.