Subtract 3x – 2y + 7 from the sum of 6 – 3y + x and y + 2x + 1.

The selling price of 10 laptops is equal to the cost price of 11 laptops. Find the profit/loss percent.

The least number which must be added to 6709 to make it exactly divisible by 9 is :

In a vulgar fraction, which can be the denominator?

Is it possible to have product of sum and difference of two numbers as −33? If yes, find the difference of the two numbers.

Find the HCF of first sixteen even multiples of 17.

Define concave quadrilateral.

LCM of the group of given numbers is more than the greatest of these numbers.

The sum of eleven lakh, eleven thousand, eleven hundred and eleven.

Express 47 as a ratio.

Reshma has spent ¾ of ½ of her pocket money. If she still has Rs.62.5,, What is her total pocket money?

What is the unit's digit of the product of all prime numbers between 1 and 100 ?

Which is greater x+4 or x-4 for any negative value of x ?

The average marks of 8 students is 29. Two more candidates with 31 and 27 join them. Find the new average.

Surface area of a cube is ⅜ X². Find its volume.

The sum of the ages of three persons is 100 years. what will be the sum of their ages after 5 years:

Rearrange the digits of 1,02,35,007 to get the largest and the smallest number. The difference between the place values of 2 in these two numbers is :

A number 'n' is said to be 'perfect' if the sum of all its divisors (excluding 'n' itself ) is equal to n . An example of a perfect number is:

If 'n' is a natural number then n(n+1)(n+2) is always divisible by :

2½ [3 + ¾ times 2 ]