The present age of Surjeet and Rakesh are in the ratio of 4:5. After 8 years the ratio of their ages will be 6:7. What is 70% of the sum of their present ages?
Let the present ages of Surjeet and Rakesh be 4x and 5x respectively Thus, (4x + 8)/ (5x + 8) = 6/7 28x + 56 = 30x + 48 30x - 28x = 56 – 48 2x = 8 x = 4 Sum of their ages = 4x + 5x = 9x = 9 × 4 = 36 years ∴ 70% of 36 = 70/100 × 36 = 25.2 years
लड़कियों की एक पंक्ति में सामने से श्वेता का स्थान 11 वां है ...
17 मई 2000 के 5 दिन पहले बुधवार था तो 2 व्बजण् 1999 को क्या दिन होगा ?
............... is used to read handwritten or printed text to make a digital image that is stored in memory.
What is Java?
If in the word ‘ DEPENDABLE ’ all the letters are arranged in alphabetical order from left to right end then position of how many letter(s) will be ...
Statements :
No letter is an alphabet.
Some alphabets are digits.
Some digits are numbers.
Conclusions : ...
If the first and the second letters of the word CIRCUMFERENCE are interchanged with the last and the second last letters respectively, and similarly the...
When the digits, which are odd in the number ‘ 67894532 ’ are decreased by 2 and the remaining digits are increased by 1, then what is the sum of 5<...
A(n) ........................ is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, m...
The group of wires that transfer data are known as the: