Question
The sum of the present ages of two cousins is 54 years.
Eleven years ago, the older one was thrice as old as the younger one. What is the present age of the older cousin?Solution
Let Present age of younger cousin and older cousin be a and b years respectively. ⇒ a + b = 54 ----(1) Also, 11 years ago, ⇒ (b – 11) = 3(a – 11) ⇒ b – 11 = 3a – 33 ⇒ 3a – b = 22 ----(2) Adding equation (1) and (2), we get ⇒ 4a = 76 ⇒ a = 19 By equation (1), we have ⇒ 19 + b = 54 ⇒ b = 35 ∴ Present age of Older cousin is 35 years.
In which century was the Jama Masjid of Delhi constructed?
Which of the following is NOT a step taken to reduce NPAs in India?
Which former executive of Care Ratings has been barred by SEBI from associating with any stock market intermediary for two years?
The Prime Minister Shri. Narendra Modi recently inaugurated ‘Kranti Gatha’ A Newly Created Gallery Of Indian Revolutionaries Inside An Under...
Which of the following is the oldest thermal project of Uttar Pradesh?
When do we observe Veer Bal Diwas in the month of December in India?
Who is the author of "Narendra Modi: A Political Biography"?
In May 2021, N Rangaswamy became CM of Puducherry. He became the CM of Puducherry for the ____ time.
What was the theme of the UNAIDS report released in 2024?
What is the motto incorporated under India's National Emblem?
Relevant for Exams:
