Number System

The sum of 6 consecutive odd numbers exceeds twice the largest by 38. Find the sum of the six numbers?-72
3, 9, 5, 11, 7, ...-13
If 2 < x < 4 and 3 < y < 7, what is the largest integer value of x + y?-10
A farmer had 20 hens. All but 2 died. How many hens are still alive?-2
If n and p are both odd numbers, which of the following must be an even number?-n + p
The average of 7 consecutive number is 20. The largest of these number is:-23
0.1 is how many times greater than 0.001?-100
What are all values of x that satisfy the equation x2 + 4x + 3 = 0?-- 3 and - 1
If the sum of 3 consecutive integers is 150, then the sum of the two smaller integers is:-99
2, 9, 6, 7, 18, 5, ....-54
What is the least integer that is a sum of three different primes each greater than 20?-83
How many prime numbers are there between 56 and 100?-9
In a class composed of x girls and y boys what part of the class is composed of girls?-x / (x + y)
A student first reduced a number by 20 percent and then increased it again by 20 percent. If the difference between the two new numbers was 8, then what is the original number?-50
What is the number of primes that are divisible by 3?-1
If 1.4 is halfway between two points x and y what sre the possible values of x and y?-0.3 and 3.1
The larger of two numbers exceeds twice the smaller number by 9. The sum of twice the larger and 5 times the smaller is 74. If a is the sum of the smaller number, which equation below determines the correct value of a?-2(2a + 9) + 5a = 74
If x = 12, which of the following has the maximum value?-(x - 5)(x - 3)
The average of 15 consecutive integers is 15. What is the smallest of the 15 integers?-8
How many pupils can be seated in a room with N single chairs and B double seated benches?-2b + n
If x and y are prime numbers, which of the following cannot be the sum of x and y?-23
Sum of 3 consucutive integers is 18. What is the smallest integer less 3?-2
If the sum of four consicutive even integer is s, what is the greatest of the integers in terms of s?-(s + 12)/4
If an integer y is subtracted from an integer x, and the result is greater than x, then y must be :-Less than 0
The difference between √150 and √54 is---2√6
Which set of numbers is like the given set [48, 24, 12]?-[40, 20, 10]
What is the next number in the series? 5, 3, 1, 7, 3, 2, 9, 5, ...-5
If x is an integer, then which of the following is must be odd?-2x + 3
Sum of three different positive integeris the same as their product. Find the smallest of these three integers?-1
If you add up the digits of a three-digit number you get 18. the ten's digit is twice the hundred's digit and the hundred's digit is 1/3 the unit's digit. What is the number?-369
If x is an odd integer and y is an even integer which of the statements is(are) always true? I. x + y is odd II. xy is odd III. 2x + y is even.-I and III only
The first 5 numbers in a regular esquence are 4, 10, 22, 46 and 94. What is the next number in the sequence?-190
Which of the following is not an integer?-9.98
The average of 3 numbers is 7. If 2 of the numbers are zero, then what is the 3rd number?-21
The least number of 4 digits which is a perfect square, is:-1024
Every sunday Akbar jogs 3 miles. For the rest of the week, each day he jogs 1 mile more than the previous day. How many miles does Akbar jog in 2 weeks?-84
What is the difference between the 6 digit largest and the smallest numbers?-899999
If the sum of the 3 consecutive integers is 240, then the sum of the two larger integers is:-161
The least number by which 294 must be multiplied to make it a perfect square, is:-6
Find the missing number in the series 3, 6, 18, 72, 360, ---2160
Find the next number in the series: 3, 6, 4, 9, 5, 12, 6, ...-15
What is the product of the odd integers between - 8 and 8?-11025
The value of - 3 - (- 10) is how much greater than the value of - 10 - (- 3)?-14
Six consecutive whole numbers are given; the sum of the first three numbers is 27. What is the sum of the last three numbers?-36
How many of the positive integers less than 25 are 2 less than an integer multiple of 4?-six
r>s>0; Quantity A = rs/r and Quantity B = rs/s-Quantity in B is greater
Find the next number of the series 7, 10, 14, 16, 21, 22, ----28
If one-third of one-fourth of a number is 15, then three-tenth of that number is:-54
What is the next number in the series? 8, 11, 17, 24, 29, 53, 78, ....-101
The positive difference between the squares of any two consecutive integers is always----an odd number
If x is negative, which of the following must also be negative?-x3 - x2
If the product of three consecutive integers is 210, then the sum of the two smaller integers is-----11
If the product of 3 consecutive integers is 120, then the sum of the integers is-----15
If X is an odd integer and Y is an even integer, which of the following statements is(are) always true? I. X + Y is odd II. XY is odd III. X + 2Y is even-I only
The number of girls in a class is 5 times the number of boys. Which of the following can not be the total number of children in the class?-35
Fill in the blank in the series: 000, 001, 011, ----111
Which of the following is the greatest?-(1/2)-4
The next number in the geometric progression 5, 10, 20 is:-40
If x = -1, then - (x4 + x3 + x2 + x) =-0
The average of four consecutive odd positive integers is always---an even number
The average of five numbers is 27. If one number is excluded, the average becomes 24. The excluded numbers is:-35
If 4 is subtracted from one-fourth of a number, the result is 20. Which of the following is the number?-96
Which of the following is a prime number?-2
Which of the following franctions has the smallest value?-34.7/163
A two-digit number has 3 in its unit digit. The sum of its digits is one-seventh of the number itself. What is the number?-63
x = 2y + 3 and y = - 2; Quantity A = x and Quantity B = - 1-The two quantities are equal
A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is the number?-8
If both x and y are integers and x = 24y + 12, then which of the following must be true?-x/6 is even
Find the probability of selecting a prime number from a set numbers 1 to 15 (both inclusive).-2/5
If n and p are both even number, which of the following number must be an odd number?-np + 1
Which of the following must be odd? I. The product of two even numbers II. The product of two odd numbers III. The sum of an odd and an even number-II and III only
If - 1 < x ≤ 1 and x is an integer, then value of x is---0 and 1
1 + 2 + 3 + ........ + 100 =?-5050
If N and P are odd numbers then which of the following must be even number?-N + P
A third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two subjects together, how many marks did he get in Social Studies?-60
Which of the next number in the series? 2, 5, 7, 8, 8, ......-7
1, 2, 3, 5, 7, ......-11
Find the missing number of the series 1/16, 1/4, -- , 4-1
Find the least number exactly divisible by 12, 15, 20 and 27.-540
If the 1st number ina deries of consecutive odd numbers is 8 less than the last number in the series, how many numbers are there in the series?-5
If m and n are positive integers, which of the following must be an even integer?-n(n - 1)(m - 1)
What number should be devided by √0.25 to give the result as 25?-12.5
If n is an even integer which of the following must be an odd integer?-(16n + 24)/8
What is the next number in the series 1, 4, 9, 16, ....?-25
If product of two sequential positive odd numbers is 255, what are those numbers?-15, 17
8, 14, 24, 42, ......, 142-76
If the sum of five consecutive positive integers is A, then the sum of the next five consecutive integer in terms of A is:-A + 25
The product of two numbers is 900 and their sum exceeds their difference by 30. The greater of these two numbers is:-60
If m is an even integer and n is an odd integer and both are positive numbers then which of the following must be even?-mn + m2
A number is selected at random from 40 to 50 inclusive. What is the probability that the number is prime number?-3/11
The sum of a number and its inverse (or reciprocal) is equal to twice the number. What is the number?-1 or -1
The sum of two numbers is 25 and their difference is 13. Find their product.-114
In the following series, what comes next? 1, A, 9, I, 17, ---Q
The sum of two positive integers multiplied by the bigger number is 204, and their difference multiplied by the smaller number is 35. The numbers are:-12, 5
How many prime numbers are there between 45 and 72?-6
If x is an integer, then which of the following is always an even integer?-2x + 2
Which one of the following is greater than 2/3?-8/11