1.
If the students of a class can be grouped exactly into 6, 8 or 10, then what is the minimum number of students in the class ?
2.
How many prime numbers are there in the first 150 natural numbers?
3.
What is the square root of 1444? If possible as a whole number.
4.
What is the greatest number that exactly divides 105, 1008 and 2436 ?
5.
The final ratio of two quantities can be expressed as ⅜ : ⅓ .
6.
What is difference between − 37 and 63?
7.
Which is the least three digit number divisible by 3 but not divisible by 9 ?
8.
What least number should be subtracted from 26492518 so that the resulting number is divisible by 3 but not by 9 ?
9.
What is the value of 128 ÷ 8 ÷ 4 ÷ 2 ?
10.
What is a fraction of fractions ?
12.
The sum of the ages of three persons is 100 years. what will be the sum of their ages after 5 years:
13.
Which digits have the same place value and face value in the number 4560923 ?
14.
Which is the least three digit number divisible by 9 but not divisible by 3 ?
15.
Which of the following numbers is not divisible by 18 ?
16.
Which one of the following statements is correct ? The number 5340304332 is:
17.
The product of two co -prime numbers is 117. What is their L.C.M. ?
18.
What is the remainder obtained when a prime number greater than 6 is divided by 6 ?
19.
What is the next thousandth number after 1,45,069.
20.
The difference between two numbers is 7 and their sum is 35. What will be their product ?
