If the sum and diference of two numbers are 20 and 8 respectively, then the difference of their squares is :
Let the numbers be x and y. Then, x + y = 20 and x - y = 8.
x^2 - y^2 = (x + y) (x - y) = 20 x 8 = 160.
The coefficient of x in(×-3y)3 is :
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The largest number which should replace * in the number 2365*4 to make the number divisible by 4 is:
43÷16×2-1=?
If a+1a=5 then a3+a31 is:
Sum of four consecutive odd numbers is 328. Find the largest number.
What is the smallest integer that is divisible by 3, 7 and 18?
If the mean of the numbers 27 + x, 31 + x, 89 + x, 107 + x and 156 + x is 82.then the mean of 130 + x, 126 x, 68 + x, 50 + x 1 + x is :
Arrange the following in the decreasing order?
(√23 – √21), (√19 – √17), (√21 – √19)
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