Question
After 12 years, "Aman" will be three times as old as he
was 20 years ago. The age difference between "Aman" and "Bhanu" in twelve years will be 4:5, respectively. Determine the current age of "Chetna" if the average age of "Aman," "Bhanu," and "Chetna" is 38 years old.Solution
ATQ, Let present age of ‘Aman’ be ‘a’ years So, 3(a – 20) = a + 12 Or, 3a – 60 = a + 12 Or, 2a = 72 Or, a = 36 Present age of ‘Bhanu’ = 5/4 × {36 + 12} – 12 = 60 – 12 = 48 years Present age of ‘Chetna’ = 38 × 3 – 36 – 48 = 30 years
Which of the following is high analysis fertilizer?
International year of potato was celebrated in
Yellow vein mosaic virus in okra is transmitted by
The aroma in rice is due to the presence of ____
Which of the following fruit is popularly known as apple of the tropics/ poor man’s apple.
Diffenbachia is a
Diffusion of water or other solvent through a semi-permeable membrane is called
White rust of crucifer is caused by:
The Bordeaux mixture was first used for the control of _____
 …………………………….horizon is visible in virgin soils and absent in arable soils.
...