81) If a 1 mm thick paper is folded so that the area is halved at every fold, then what would be the thickness of the pile after 50 folds?
(A) 100 Km
(B) 1000 Km
(C) 1 Million Km
(D) 1 Billion Km
82) The total of the ages of Amar, Akbar and Anthony is 80 years. What was the total of their ages three years ago?
(A) 71 years
(B) 73 years
(C) 74 years
(D) 77 years
83) A total of 324 coins of 20 paisa and 25 paisa make a sum of Rs. 71. The number of 25-paisa coins are:
(A) 120
(B) 124
(C) 144
(D) 200
84) A printer numbers the pages of a book starting with 1 and uses 3189 digits in all. How many pages does the book have?
(A) 1000
(B) 1074
(C) 1075
(D) 1080
85) If 100 cats kill 100 mice in 100 days, then 4 cats would kill 4 mice in how many days?
(A) 1 day
(B) 4 days
(C) 40 days
(D) 100 days
86) A man completes a journey in 10 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.
(A) 220 km
(B) 224 km
(C) 230 km
(D) 234 km
87) A car traveling with 5/7 of its actual speed covers 42 km in 1 hr 40 in 48 sec. Find the actual speed of the car.
(A) 17 6/7
(B) 25 km/hr
(C) 30 km/hr
(D) 35 km/hr
88) A farmer traveled a distance of 61 km in 9 hours. He traveled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance traveled on foot is:
(A) 14 km
(B) 15 km
(C) 16 km
(D) 17 km
89) A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes?
(A) 30 rolls
(B) 58 rolls
(C) 120 rolls
(D) 150 rolls
90) A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?
(A) 2
(B) 3
(C) 6
(D) 12