81. Which
of the following numbers is divisible by 24?
(A) 15824 (B) 14824
(C) 13824 (D) 12824
Answer: C
82. If a/4=b/5=c/7,
then (a+b+c)/a =
(A) 4 (B) 5
(C) 7 (D) 16
Answer: A
83. A
student multiplied a number by 4/5 instead of 5/4.
The percentage error is:
(A) 45% (B)
36%
(C) 60% (D)
64%
Answer: B
84. The
number of marble slabs of size 25 cm x 25 cm required to pave the floor of a
square room of side 10 metres is:
(A) 1600 (B) 1000
(C) 2000 (D) 2500
Answer: A
85. 40%
of a number is added to 120, then the result is double of the number. What is
the number?
(A) 100 (B)
240
(C) 150 (D)
75
Answer: D
86. A
and B can do a work in 10 days, B and C can do it in 12 days, C and A can do it
in 15 days. If A, B, and C work together, they will complete the work in:
(A) 15 days (B) 8 days
(C) 10 days (D) 12 days
Answer: B
87. The
prices of a table and a chair are in the ratio 4:1. The cost of 2 tables and 8
chairs is Rs.400, the cost of a table is:
(A) Rs.25 (B) Rs.100
(C) Rs.75 (D) Rs.50
Answer: B
88. The
ratio of men and women in a polling booth is 4:5. If there were 120 women more
than that of men, the number of voters in the booth were:
(A) 480 (B) 600
(C) 1080 (D) 1000
Answer: C
89. A
train of length 150 meters took 8 seconds to cross a bridge of length 250
meters. Time taken by the train to cross
a telephone post is:
(A) 5 seconds (B)
8 seconds
(C) 3 seconds (D)
2 seconds
Answer: C
90. The
difference between compound interest and simple interest for an amount in 2
years is Rs.32. If the rate of interest is 8%, the amount is:
(A) Rs.10000 (B)
Rs.1000
(C) Rs.5000 (D)
Rs.2500
Answer:
C
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