A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number ?
Let the number be v. Then, 3 (2x + 9) = 75.
2x + 9 = 25
=> 2x = 16
=> x = 8
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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