Number System MCQs
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Number System MCQs
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25 Questions

1. Suppose x = a(b - c), y = b(c - a), z = c(a - b), then what is the value of (x/a)3 + (y/b)3 + (z/c)3?
2. If the sum of the digits of a two-digit number is 12, and the difference between the digits of that number is 6, what will be the number?
3. The sum of odd numbers upto 240 is -
4. Suppose there is a number 'n'. When 'n' is divided by 5, the remainder will be 2. What will be the remainder when n2 is divided by 5?
5. The sum of the squares of three consecutive positive numbers is 365. What will the sum of numbers?
6. Every rational number is a -
7. If x, y, and z are said to be the real numbers, then what is the value of (x - y)3 + (y - z)3 + (z - x)3 ?
8. What will be the value of a3 - 3a2 + 3a + 3b + 3b2 + b3, if a = -4, and b = -2?
9. If the sum of two numbers is 12 and their product is 35, then what will be the sum of their reciprocals?
10. What is the value of (a - b), if (a2 - b2)/(a + b) = 25?
11. Which of the following is the unit digit in the product of 853 x 452 x 226 x 1346?
12. If a = (0.4)2, b = 0.04, and c = 2/5, then which of the following is the correct relationship between a, b, and c?
13. If the sum of two numbers is considered as 'a' and their product is considered as 'b', then what will be the sum of their reciprocals?
14. Which is the largest 4-digit number that can be exactly divisible by 66?
15. Digit 1 is occurring 136 times on writing all of the page numbers of a book. What will be the number of pages in the book?
16. If the three-fifth of a number is equal to 70% of another number, what is the ratio between the first number and second number?
17. If a and b are two odd numbers, then which of the following is even?
18. The sum of three numbers is 2, if the first number is � times of the 2nd number, and the third number is � times of the 2nd number. What will be the second number?
19. If (64)2 - (36)2 = 20 * x, then what is the value of x?
20. Which of the following is the unit digit in (1570)2 + (1571)2 + (1572)2 + (1573)2?
21. From the list of below options, which of the fraction is the smallest?
22. Between any two numbers, there are -
23. Which is the largest 4-digit number that can be exactly divisible by 66?
24. The sum of three numbers is 252. What is the value of the second number if the first number is thrice of the second number, and the third number is two-third of the first number?
25. If the sum and reciprocal of a number is equal to 2, the number is -

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