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Aptitude :

Problems on Numbers




1.
Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number

5
15
20
25




2.
Sum of a rational number and its reciprocal is 13/6. Find the number

2
3/2
4/2
none of these




3.
Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:

11
13
9
15




4.
The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?

3
4
2
cannot be determined




5.
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?

5
8
4
2




6.
find the number, difference between number and its 3/5 is 50.

130
145
150
125




7.
The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is

20
15
17
18




8.
If one third of one fourth of number is 15, then three tenth of number is

34
24
54
44




9.
The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is:

400
300
420
320




10.
A number is doubled and 9 is added. If resultant is trebled, it becomes 75. What is that number

8
4
2
1




11.
Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number

17
21
9
3




12.
Sum of two numbers is 25 and their difference is 13. Find their product.

104
124
114
115




13.
Sum of two numbers is 40 and their difference is 4. The ratio of the numbers is

10:9
12:3
11:9
11:7




14.
Two numbers differ by 5. If their product is 336, then sum of two number is

33
37
34
38




15.
Difference between a two-digit number and the number obtained by interchanging the two digits is 36, what is the difference between two numbers

2
4
6
8










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FreshersLive - No.1 Job site in India. Here you can find latest 2016 government as well as private job recruitment notifications for different posts vacancies in India. Get top company jobs for both fresher and experienced. Job Seekers can get useful interview tips, resume services & interview Question and answer. Practice online test free which is helpful for interview preparation. Register with us to get latest employment news/rojgar samachar notifications. Also get latest free govt and other sarkari naukri job alerts daily through E-mail.