Number System MCQs
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Number System MCQs
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25 Questions

1. If the ratio of two positive numbers is 7 : 9 and their product is 1575, then the greatest number is -
2. Every rational number is a -
3. If the sum of two numbers is 12 and their product is 35, then what will be the sum of their reciprocals?
4. 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?
5. What will be the remainder when 636 is divided by 215?
6. 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?
7. The sum of the numerator and denominator of a fraction is 11. If we add 2 to both numerator and denominator, the fraction will be increased by 1/24. What is the difference between the numerator and denominator of that fraction?
8. If (64)2 - (36)2 = 20 * x, then what is the value of x?
9. The sum of odd numbers upto 240 is -
10. What will be the result of 1397 x 1397?
11. 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?
12. 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?
13. If a and b are two odd numbers, then which of the following is even?
14. What will be the value of x, if 5(x + 3) = 25(3x - 4)?
15. What will be the value of a3 - 3a2 + 3a + 3b + 3b2 + b3, if a = -4, and b = -2?
16. 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?
17. Which is the largest 4-digit number that can be exactly divisible by 66?
18. 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 ?
19. If the number A381 is divisible by 11, then what is the value of A?
20. What will be the value of x3 + y3 + z3, if x + y + z = 0?
21. Which of the following number is divisible by 9?
22. Which of the following is equal to x3?
23. What will be the unit digit of (2153)167?
24. If the two-third of three - fourth of a number is 34, what will be the 20% of that number?
25. 7X2 is a three-digit number in which X is a missing digit. If the number is divisible by 6, the missing digit is -

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