RE 1 - Arithmetic Revision Exercise | Arithmetic - Revision
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Vishal who is an engineering student put some amount in a bank and obtained an interest of Rs.150 at the end of one year. He added Rs. 850 to this amount and put all the amount again in the bank for another year. At the end of the 2nd year Vishal got Rs. 4200 as total amount (interest + principal). What amount did he put in the beginning and what is the rate of interest offered by the bank if the minimum amount that can be deposited in the bank is Rs. 750?
- (a)
Rs. 2,500, 5%
- (b)
Rs. 3,000, 5%
- (c)
Rs. 2,000, 8%
- (d)
Rs. 3,500, 3.5%
Solution
Discuss
ReportThree years ago, the sum of annual incomes of Nikhar and his four brothers A, B, C and D was Rs. 1,20,000. Two years hence, the sum of annual incomes of Nikhar and the two brothers A and D will be Rs. 1,00,000. The present annual incomes, in the given order, of A, B, C and D are in an Arithmetic Progression, with a common difference of Rs. 2,000. If the annual income of Nikhar, along with each of his four brothers, increases by Rs.2,000 every year find the present annual income of Nikhar (in Rs.).
[Enter your answer as the nearest possible integer]
1 litre of liquid A weighs 800 gms while 1 litre of liquid B weighs 500 gms. How much liquid A is mixed with 300 ml of liquid such that the resulting mixture weighs 350 gms for every 500 ml.
- (a)
600
- (b)
200
- (c)
00
- (d)
Not possible
Twenty candies and thirty biscuits are to be distributed among 10 children in such a way that each child gets something. Anyone who gets more than two biscuits cannot get more than one candy and anyone who gets more than one candy cannot get more than three biscuits. What is the maximum number of biscuits that one can get?
A shipping clerk has five boxes having different weights. The clerk weighed the boxes in pairs and obtained the weights (in kg) as 66, 70, 71, 72, 73, 74, 76, 77, 80 and 81. What is the weight of the heaviest box? (in kg)
- (a)
40
- (b)
41
- (c)
42
- (d)
44
A car has a total of five tyres, four running tyres and one spare tyre. It ran a total of 20,000 kilometres with each tyre running the same number of miles. If replacing one tyre by another is called a ‘change’, what is the minimum number of changes required in covering 20,000 miles?
Five students with efficiencies in the ratio 1 : 2 : 3 : 4 : 5 : 6 are working on their final year project. They work in such a way that exactly three of them work together. Two-third of the project is completed when each of the possible group of three students has worked for exactly one day. How many more days are required, if the remaining project is completed by all of them working together?
- (a)
18
- (b)
25
- (c)
5
- (d)
21
A motorboat provides for a regular transportation of passengers between point P to point Q, located on the same side of river bank. If the motorboat triples its speed in still water, then the trip from P to Q and back to P would take one-third the time what it usually takes. Find the speed of the current.
- (a)
1 km/h
- (b)
2 km/h
- (c)
3 km/h
- (d)
None of these
There are three pipes A, B and C which can fill a tank in 6, 5 and 8 hours respectively. All the three pipes were opened simultaneously. It was found that for first 2 hours, pipe A supplied water at 2/5th of its normal capacity, pipe B supplied water at 2/3rd of its normal capacity and pipe C supplied water at 4/5th of its normal capacity. Thereafter, they supplied water at their normal rates. In how much time (in hours) will the tank be full?
- (a)
3
- (b)
1
- (c)
2
- (d)
None of these
On the bank of a river, there are three temples A, B and C. The river has some magical powers by which it triples the quantity of flowers put into it. Smitha takes some flowers and puts them into the river. Then she divides them into n equal groups and offers one of the groups at temple A. She puts the remaining flowers into the river again. Then, again, forms n equal groups and offers one of these groups at temple B. She puts the remaining flowers into the river again. Then, again, forms n equal groups and offers one of these groups at temple C. The ratio of the number of flowers offered at temple B and the number of flowers remaining after being offered at temple C is 5 : 48. Find the value of n.