Question
8 years ago, the ratio of the ages of Kim and Lee was
7:5. The present age of Ron is 15 years more than one-fourth of Lee’s present age. Find Ron's present age if Kim’s age in 4 years will be 40 years.Solution
Kim and Lee's ages 8 years ago = 7x and 5x Present ages = 7x + 8, 5x + 8 Kim's present age = 40 - 4 = 36 years → 7x = 36 - 8 = 28 → x = 4 Lee's present age = 5(4) + 8 = 28 Ron's present age = (1/4) * 28 + 15 = 22
TGMS and PGMS systems of male sterility are available in:
What is another term for bench terracing commonly used in hilly agriculture?
Arrange the following activities of plant breeding in correct order and select answer from the codes given below:
1. Selection
2. Evaluati...
Ideal gas equation is:
________ is found in the tissues of ripening fruits and stem nodes. It promotes fruit ripening and leaf abscission.
Which insecticide group is primarily identified by its action of inhibiting the cholinesterase enzyme?
Which of the following peach varieties is considered self-unfruitful and requires cross-pollination?
Which of the following pricing strategies is NOT common in rural marketing?
The root growth is drastically reduced when Oxygen Diffusion Rate (ODR) is decreases to about
What is the function of the peritrophic membrane in the insect midgut?
Relevant for Exams:
