Advertisements
Advertisements
Question
9 added to twice a number gives 13. Find the number.
Advertisements
Solution
Let the required number be x.
It is given that 9 added to twice this number gives 13.
∴ 2x + 9 = 13
⇒ 2x = 13 – 9 ...[Transposing 9 to RHS]
⇒ 2x = 4
⇒ `(2x)/2 = 4/2` ...[Dividing both sides by 2]
⇒ x = 2
Hence, the required number is 2.
APPEARS IN
RELATED QUESTIONS
The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. What is the lowest score?
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
The worth of x coins of ₹ 2 each ______.
Six times a number is 10 more than the number.
My younger sister's age today is 3 times, what it will be 3 years from now minus 3 times what her age was 3 years ago. Find her present age.
The sum of three consecutive integers is 5 more than the smallest of the integers. Find the integers.
Two complementary angles differ by 20°. Find the angles.
150 has been divided into two parts such that twice the first part is equal to the second part. Find the parts.
Twice a number added to half of itself equals 24. Find the number.
Look at this riddle?
If she answers the riddle correctly how ever will she pay for the pencils?
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.
