81. In a town of population 100,000, 20% have internet connection. And those who have internet connection, 15% use PTCL internet service. How many people have internet service other than PTCL?
(A) 3,000
(B) 7,000
(C) 12,000
(D) 17,000
(A) 3,000
(B) 7,000
(C) 12,000
(D) 17,000
82. A car parking charges n dollars for the first hour, and m pence for every additional hour. What amount it will charge if a car stayed for 5 hours?
(A) n + 5m
(B) n + 4m
(C) m + 4n
(D) m + 5n
(A) n + 5m
(B) n + 4m
(C) m + 4n
(D) m + 5n
83. What is the value of x in the equation: 0.2x − 0.03 = 0.4 × 0.05 ?
(A) 0.20
(B) 0.02
(C) 0.25
(D) 0.025
(A) 0.20
(B) 0.02
(C) 0.25
(D) 0.025
84. Bilal’s salary is 120% of Ahmed salary. And, Saba’s salary is 60% of Ahmed’s salary. The total of all three salaries is Rs.112,000. What is Saba’s salary?
(A) Rs.24,000
(B) Rs.24,500
(C) Rs.25,000
(D) Rs.25,500
(A) Rs.24,000
(B) Rs.24,500
(C) Rs.25,000
(D) Rs.25,500
85. What is the solution set of the equation: 
(A) {1, 3}
(B) {–1, 3}
(C) {1, –3}
(D) {–1, –3}
(A) {1, 3}
(B) {–1, 3}
(C) {1, –3}
(D) {–1, –3}
ANSWERS: ASSISTANT DIRECTOR TEST
81(D) Find solution below..
82(B) 83(C) 84(A) 85(D)
81(D) Find solution below..
82(B) 83(C) 84(A) 85(D)
SOLUTIONS: MINISTRY OF DEFENCE PAST TEST
81. (D)
82. (B) First hour charges = n, remaining 4 hour charges = 4m. Total charges = n + 4m
83. (C)
84. (A) Let Ahmed’s salary = A, Bilal’s salary = 120% of A, Saba’s salary is 60% of A, and total salaries = 112,000, then
at 
is?
