Number System
Number System Questions: What is Number System in Maths? Divisibility Rules for 7, Divisibility Rules for 11, Binomial Theorem Questions, Factorize Expressions
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Online Aptitude Questions with Answers on Number System
Q56. **What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4?**
- 6084
- 6184
- 5084
- 6048
Solution : 6084
Q57. **What is the difference between the largest and the smallest number written with 7, 7, 0, 7?**
- 6893
- 6993
- 6009
- 693
Solution : 693
Q58. **Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number?**
- N(N + 1)
- N(N + 1)/2
- N^2 + 1
- N^2
Solution : N^2
Q59. **Which one of the following represents the sum of the first n even numbers?**
- N(N – 1)
- N(N + 1)
- N2+ 1
- N2
Solution : N(N + 1)
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Q60. **What is the sum of all even numbers from 1 to 701?**
- 122500
- 122550
- 123850
- 122850
Solution : 122850
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