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 opening on an arthropod body surface that allows for air transfer is called:
Which soil structure is considered ideal for cultivation?
In north India, sugarcane is mostly used with how many buds?
In conservation tillage, the minimum land surface covered by crop residues is
Match the following:
Arka Jyoti is variety of:Â
Which fungal disease affects the seedling emergence from the soil in two phases, namely pre-emergence and post-emergence damping-off?
The first Indian Agricultural University was established in:
Water inside the plant moves through:
Post harvest losses in foodgrain comprises of what percent of the total grain loss?Â
