Question
The current ages of A and B have a ratio of 7:9. Twelve
years from now, B will be 12 years older than A. What will be the ratio of their ages in six years?Solution
Let present ages of A and B be '7x' and '9x' years, respectively. According to question, 9x - 7x = 12 2x = 12 x = 6 So, present ages of A and B is 42 years and 54 years, respectively. Desired ratio = (42 + 6) :(54 + 6) = 48:60 = 4:5 Hence, option a
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...
Relevant for Exams:
