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(4) Mathematics (Q. No. 91-120)
101. A man sold 18 cots for Rs. 16, 800, gaining thereby the cost price of 3 cots. The cost price of a cot is :-
(a) Rs. 650
(b) Rs. 700
(c) Rs. 750
(d) Rs. 800
Answer – c
102. An amount of Rs. 2430 is divided among A,B and C such that if their shares be reduced by Rs. 5, Rs. 10 and Rs. 15 respectively.The remainders shall be in the ratio of 3: 4: 5 Then, B’s share was :-
(a) Rs. 605
(b) Rs. 790
(c) Rs. 800
(d) Rs. 810
Answer – c
103. A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job ?
(a) 40
(b) 50
(c) 54
(d) 60
Answer – b
104. Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill in the tank in 15 minutes. Thecapacity of the tank is
(a) 60 gallons
(b) 100 gallons
(c) 120 gallons
(d) 180 gallons
Answer – d
105. Three persons are walking from a place A to another place B. Their speeds are in the ratio of 4 : 3 : 5. The time ratio to reach B by these persons will be :-
(a) 4 : 3: 5
(b) 5 : 3 : 4
(c) 15 : 9 : 20
(d) 15 : 20 : 12
Answer – a
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106. A train traveling at 48 kmph completely crosses another train having half its length and traveling in opposite direction at 42 kmph, in 12 seconds, It also passes a railway platform in 45 seconds. The length of the platform is
(a) 400 m
(b) 450 m
(c) 560m
(d) 600 m
Answer – d
107. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the steam is
(a) 2 mph
(b) 2.5mph
(c) 3mph
(d) 4mph
Answer – c
108. A merchant has 1000 Kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is :-
(a) 400 kg
(b) 560 kg
(c) 600 kg
(d) 640 kg
Answer – c
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110. A rectangular paper, when folded into two congruent parts had a perimeter of 34 cm for each part folded along one set of sides and the same is 38 cm when folded along the other set of sides. What is the area of the paper?
(a) 140cm2
(b) 240cm
(c) 560cm2
(d) None of these
Answer – d