Advertisements
Advertisements
प्रश्न
Deepak is twice as old as his brother Vikas. If the difference between their ages is 11 years, find their present ages.
उत्तर
Let the present age of Vikas be x years.
Since Deepak is twice as old as Vikas, the present age of Deepak will be 2x years.
According to the question:
2x − x = 11
x = 11
∴ Present age of Vikas = 11 years
Present age of Deepak = 2x = 2××11
= 22 years
APPEARS IN
संबंधित प्रश्न
Observe the patterns of digits made from line segments of equal length. You will find such segmented digits on the display of electronic watches or calculators.
If the number of digits formed is taken to be n, the number of segments required to
form n digits is given by the algebraic expression appearing on the right of each pattern.
How many segments are required to form 5, 10, 100 digits of the kind −
If 11 is subtracted from 4 times a number, the result is 89. Find the number.
Find a number which when multiplied by 5 is increased by 80.
The sum of three consecutive natural numbers is 114. Find the numbers.
If a number is tripled and the result is increased by 5, we get 50. Find the number.
Find two numbers such that one of them is five times the other and their difference is 132.
The side of a regular hexagon is denoted by l. Express the perimeter of the hexagon using l.
(Hint: A regular hexagon has all its six sides equal in length.)
The sum of first n natural numbers is given by `1/2n^2 + 1/2n`. Find the sum of first 5 natural numbers.
The sum of the multiplication table of natural number ‘n’ is given by 55 × n. Find the sum of table of 7.
If 
= 2x + 3, 
= `3/2x + 7` and 
= x – 3 then find the value of:
2
+ 
– 
