Advertisements
Advertisements
प्रश्न
Set up equation and solve them to find the unknown number in the following case:
When I subtracted 11 from twice a number, the result was 15.
Advertisements
उत्तर
Let the number be x.
Twice of this number = 2x
2x - 11 = 15
2x = 15 + 11 ...(Transposing -11 to R.H.S.)
2x = 26
Dividing both sides by 2
`(2x)/2 = 26/2`
x = 13
APPEARS IN
संबंधित प्रश्न
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
The equation formed is ______.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
The equation formed is ______.
If 10 is subtracted from half of a number, the result is 4.
The age of Sohan Lal is four times that of his son Amit. If the difference of their ages is 27 years, find the age of Amit.
The sum of three consecutive integers is 5 more than the smallest of the integers. Find the integers.
The perimeter of a rectangle is 40 m. The length of the rectangle is 4 m less than 5 times its breadth. Find the length of the rectangle.
The sum of two consecutive multiples of 2 is 18. Find the numbers.
If one side of a square is represented by 18x – 20 and the adjacent side is represented by 42 – 13x, find the length of the side of the square.
Follow the directions and correct the given incorrect equation, written in Roman numerals:
Move one matchstick to make the equation valid. Find two different solutions.
What does a duck do when it flies upside down? The answer to this riddle is hidden in the equation given below:
If i + 69 = 70, then i = ? If 8u = 6u + 8, then u = ?
If 4a = –5a + 45, then a = ? if 4q + 5 = 17, then q = ?
If –5t – 60 = – 70, then t = ? If `1/4`s + 98 = 100, then s = ?
If `5/3`p + 9 = 24, then p = ______?
If 3c = c + 12, then c = ______?
If 3 (k + 1) = 24, then k = ______?
For riddle answer: substitute the number for the letter it equals
`()/1 ()/2 / ()/3 ()/4 ()/5 ()/6 ()/7 ()/8/()/4 ()/9`
