I. 2x2 – 5x - 12 = 0 => 2x2 – 8x + 3x - 12 = 0 => 2x (x – 4) + 3 (x – 4) = 0 => x = -3/2, 4 II. y2 – 11y + 30 = 0 => y2 – 6y – 5y + 30 = 0 => y (y – 6) – 5(y – 6) = 0 => y = 6, 5 Hence, x < y
The square of 12 is subtracted from 25 times a whole number, and the result is equal to the square of that number. Find the square of the difference be...
How many perfect square factors does 512 have?
A girl found the answer for the question “subtract the sum 1/4 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of erro...
Let p be a prime number. Then √p is:
If '176x95' is a six-digit number that is divisible by 3, then find the maximum value of '5x'.
Sum of all positive integers from 1 to 100 is
If the largest three – digit number is subtracted from the smallest five – digit number, then the remainder is
Christina spends half of her salary and saves the other half. If she spends ₹ 40,000 monthly, what is her annual savings?
If the expression (px3 + x2 - 2x - q) is divisible by (x-1) and (x + 1), what are the values of
p and q respectively ?
Find the average of first 23 whole numbers.
