Simple Arithmatic

Arithmetic & Mental Ability – 36

A train 140m long is running at 60kmph. In how much time will it pass a platform 260m long?

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At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years?
a) 6%
b) 6.50%
c) 7%
d) 7.50%
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The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:
a) 625
b) 630
c) 640
d) 650
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A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water?
a) 4 km/hr
b) 6 km/hr
c) 8 km/hr
d) Data inadequate
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A train 140m long is running at 60kmph. In how much time will it pass a platform 260m long?
a) 15 seconds
b) 24 seconds
c) 28 seconds
d) 30 seconds
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The compound interest on a certain sum for 2 years at 10% per annum is Rs. 525. The simple interest on the same sum for double the time at half the rate percent per annum is
a) Rs. 400
b) Rs. 500
c) Rs. 600
d) Rs. 800
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On which days of a week, the youngest and the eldest brothers are available at home at the same time?
a) Only Monday
b) Only Thursday
c) Only Friday
d) Both Monday and Thursday
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In a certain code Mouse is written as PRUQC. How is ‘SHIFT’ Written in that same code
a) VKIRD
b) VKIDR
c) VJIDR
d) VIKRD
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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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The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:
a) 12
b) 16
c) 24
d) 48
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Krishna purchased 15kg of coffee at the rate of Rs.175 per kg and 10kg of coffee at the rate of Rs.125 per kg and mixed these two. At what price per kg should he sell the mixture to make 20% profit in this transaction?
a) Rs.168
b) Rs.175
c) Rs.196
d) Rs.186
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What was the day of the week on 2nd july 1984?
a) Wednesday
b) Tuesday
c) Monday
d) Thursday
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The ratio between the speeds of the A& B is 2:3, and therefore A takes 10 min more than the time taken by B to reach the destination. If A had walked at double the speed, he would have covered the distance in
a) 8 min
b) 12 min
c) 15 min
d) 18 min
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If Tuesday falls on the fourth of the month, then, which day will fall three days after the 24th
a) Monday
b) Tuesday
c) Thursday
d) Friday
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An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:
a) 2%
b) 2.02%
c) 4%
d) 4.04%
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The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).
a) 8, 20, 28
b) 16, 28, 36
c) 20, 35, 45
d) None of these
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A student multiplied a number by 3/5 instead of 5/3. What is the percentage error
a) 45%
b) 86%
c) 36%
d) 64%
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The average of 20 students is 12 years, if the teacher's age included, average increases by one. The age of the teacher is:
a) 43 yrs
b) 33 yrs
c) 35 yrs
d) 37 yrs
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15% of 40 is greater than 25% of a number by 2, the number is
a) 16
b) 20
c) 24
d) 32
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Find out the wrong term 380, 188,92,48,20,8,2
a) 8
b) 20
c) 48
d) 188
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What number comes next ?4, 196, 16, 144, 36, 100, 64
a) 36
b) 100
c) 80
d) 64
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A shop offers 10 percent discount on the purchase of any article. It also offers an additional 12 percent discount if the payment is made in cash. If the original price of the item is Rs. 250, then what is its actual price if paid in cash ?
a) Rs. 220
b) Rs. 195
c) Rs. 198
d) None of these
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A motor car starts with the speed of 70 kmph with its increasing every 2 hours by 10 kmph. In how many hours will it cover 345 km?
a) 4 hours 15 minutes
b) 4 hours 30 minutes
c) 4 hours 5 minutes
d) can’t be determined
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AC, DC, EF, IG, ……..
a) KK
b) IL
c) JM
d) LI
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The average age of husband and his wife was 23 years at the time of their marriage. After 5 years they have a one year old child. The average age of the family now
a) 19 years
b) 23 years
c) 28.5 years
d) 29.3 years
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A vessel contains milk and water in the ratio 3:2. The volume of the contents is increased by 50% by adding water to it. From this resultant solution 30 L is withdrawn and then replaced with water. The resultant ratio of milk water in the final solution is 3:7. Find the original volume of the solution.
a) 80 L
b) 65 L
c) 75 L
d) 82 L
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