Question
The ratio of present ages of Rishi to that of Tarun is 3:4
while the ratio of present ages of Varun to that of Tarun is 5:4. If the age of Varun, 12 years ago from now was 18 years, then find the sum of present ages of Rishi and Tarun.Solution
ATQ,
Let the present age of Rishi and Tarun be '3x' years and '4x' years, respectively.
So, present age of Varun = 5/4 × 4x = 5x years
Varun's present age = (18 + 12) = 30 years.
So, 5x = 30
Or, x = 6
Required sum = (3x + 4x) = (7x) = (7 × 6) = 42 years
The Agricultural Produce (Grading and Marketing) Act was passed in which year?Â
In calcareous soil, effervescence is visible when treated with diluted 0.1 N HCl due to release of which of the following?
The CITES was signed in the year
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation. Which one of the follow...
The average hulling percentage of rice is
The Government of India in 1997 launched the Targeted Public Distribution System (TPDS) to benefit about __________poor families.
The foliar cover at the top layer of the crop plants is referred as:
The presence of excess salt in the soil requires
What term was introduced by L. Hiltner to describe an area of intense microbiological activity around growing plant roots?
The marker systems Restristol Fragment Length Polymorphist (RFLP), Diversity Array Technology (DArT), Single-Feature Polymorphism (SFP) and Restriction...
