Find the reciprocal 1. {(-1/10)-3}-2 2. (-8/11)-5 ÷ {(-8/11)2}3

Find the reciprocal 1. {(-1/10)-3}-2 2. (-8/11)-5 ÷ {(-8/11)2}3

The first three common multiples of some numbers are 18,36 and 54. Write the next three common multiples of these numbers.

One of the multiple of two coprime numbers is 20 less than 100 and the next 20 more than 100. find the co prime numbers

The numbers 23331 and 4291 are divisible by 7. Show that the number 19040 is also divisible by 7 without actual division

The numbers 840 and 876 are divisible by 6. Without actual division can you show the 1716 is also divisible by 6?

The sum of the digits of a number is 26. Find the smallest number that should be added to the number to make it divisible by 9?

The sum of the digits in the odd places from the right of a number is 11. What may be the sum of the digits in the even places of the number?

The sum of the digits in the odd places from the right of a number is 11. What may be the sum of the digits in the even places of the number? Urgent please help!

-24 x 4=

I'm a little confused with this problem, If 21 more than 3 times a number is -15, what is the number?

if √n is an irrational number, which of the following must be irrational ? a. √n^2 b. 2√n c. √n/2 d. √2n

If x is a positive integer what is the units digit of (24)5+2x (36)6 (17)3?

The sum of two numbers is 159 ,while the difference of the two numbers is 21. What are the two numbers?

find the smallest number which when divided by 18 and 24 will have a remainder of 4 and 10 respectively.

Hello everyone, I want everyone who see my question to participate in this discussion please, Could you please give me interesting topic for (master degree ) math seminar like puzzle...

If a and b are positive integers and 24ab is a perfect square, then which of the following cannot be possible? 1. Both a and b are odd 2. ab is a perfect square 3. Both a and...

The smaller number is? and the larger number is?

if z=a*b*c where a,b, c are consecutive integers in that order, and a is an even number. Which of the following must also be an integer. 1. z/3 2.z/4 3.z/8 a. 1 only b...

If x,y,z are positive integers and 4x=3y=5z, then what is the smallest value of X+y+z? a.10 b.20 c.30 d.18 e. Can't be determined

The average of 5 integers is 60. If the average of 3 of these integers is 67, what is the greatest possible value that one of the other two integers can have? A.98.5 b.100 c.99 d...

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