Simple Arithmatic

Arithmetic & Mental Ability – 22

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is

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A clock is set right at 8 AM. The clock gains 10 min in 24 hours. What will be the right time when the clock indicate 1 pm on the following day
a) 11.40 pm
b) 12:48 pm
c) 12.00 pm
d) 10:00 pm
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The sum of three consecutive natural numbers each divisible by 3 is 72. What is the largest among them
a) 21
b) 24
c) 27
d) 36
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‘Picture’ is related to ‘See’. In the same way as ‘Book’ is related to?
a) Listen
b) Read
c) Buy
d) Box
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A man started his journey from Lucknow to Kolkata, which is 200 km, at the speed of 40 kmph then he went to Banglore which is 300 km, at the speed of 20 kmph. Further he went to Ahamdabad which is 500 km, at the speed of 10 kmph. The average speed of the man is :
a) 14(2/7) kmph
b) 14(5/7) Kmph
c) 15
d) 16
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The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 kms in 4 hours, then the speed of the first train is
a) 87.5 km/h
b) 78.0 km/h
c) 65.5 km/h
d) 58.0 km/h
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From a point P on a level ground, the angle of elevation of the top tower is 30º. If the tower is 100 m high, the distance of point P from the foot of the tower is:
a) 149 m
b) 156 m
c) 173 m
d) 200 m
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Pointing to an old man Kajal said his son is my son’s uncle’. How is the old man related to Kajal
a) brother
b) uncle
c) father
d) grand father
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How many meaningful English words can be made with the letters ‘VLEI’ using each letter only once in each word?
a) five
b) one
c) three
d) four
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Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighthouse is observed from the ships are 30º and 45º respectively. If the lighthouse is 100 m high, the distance between the two ships is:
a) 173 m
b) 200 m
c) 273 m
d) 300 m
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Suresh can complete a job in 15 hours. Ashutosh alone can complete the same job in 10 hours. If Suresh works alone for 9 hours and then stops, how many hours will it take Ashutosh to complete the job alone?
a) 4
b) 5
c) 6
d) 12
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Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit”s age. After further 8 years, how many times would he be of Ronit”s age?
a) 2 times
b) (5/2)times
c) 3 times
d) 3 times
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Two pipes A and B can fill a cistern in 37 1/2 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:
a) 5 min.
b) 9 min.
c) 10 min.
d) 15 min.
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10, 14, 16, 18, 21, 24, 26 (Odd man out)
a) 26
b) 24
c) 21
d) 18
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Find the odd one from the alternatives
a) Turban
b) Skirt
c) Frock
d) Sari
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1f 2x + 3y = 81 and 7x = 5y, then what is the value of 2y-x?
a) 5
b) 7
c) 2
d) None of these
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Students of three different classes appeared in common examination. Pass average of 10 students of first class was 70%, pass average of 15 students of second class was 60% and pass average of 25 students of third class was 80% then what will be the pass average of all students of three classes?
a) 74%
b) 75%
c) 69%
d) 72%
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Find the word which can’t be formed using the letters of NATIONALISATION
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There are 3 numbers. The product of the first and second is 700. The product of second and third is 480. The product of first and third is 840. Find the numbers
a) 25, 20, 34
b) 42, 20, 24
c) 70, 10, 48
d) 35, 20, 24
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The smallest perfect square which is exactly divisible by 2, 3, 4, 5 and 6
a) 1600
b) 900
c) 784
d) 1800
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A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:
a) 90 cm
b) 1 dm
c) 1m
d) 1.1 cm
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If a sum of money placed at compound interest, compounded annually, doubles itself in 5 years, then the same amount of money will be 8 times of itself in
a) 26 years
b) 20 years
c) 15 years
d) 10 years
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A and B start walking in opposite directions. A covers 3 km and B covers 4 km. Then A turns right and walk 4 km while B turns left and walks 3 km. How far is each from the starting point
a) 10 km
b) 8 km
c) 5 km
d) 4 km
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From a container, full of pure milk, 20% is replaced by water and this process is repeated three times. At the end of third operation, the quantity of pure milk reduces to
a) 40.00%
b) 50.00%
c) 51.20%
d) 58.80%
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