Question
In a class of 60, where girls are twice that of boys,
Rohan ranked seventeenth from top. If there are 9 girls ahead of Rohan, how many boys are after him in rank?Solution
Sol: Let the number of boys be x. Then, number of girls = 2x ∴ x + 2x = 60 or x = 20 So, number of boys = 20 and number of girls = 40 Number of students behind Rohan in rank = 60 – 17 = 43 Number of girls ahead of Rohan in rank = 9 Number of girls behind Rohan in rank = 40 – 9 = 31 ∴ Number of boys behind Rohan in rank = 43 – 31 = 12
What is the process by which plants recognize pathogenic threats and activate defense responses?
Application of strobilurins is effective in management of
DSF (defatted soy flour) is used in the manufacture of
Lichens, the pioneer organisms that initiate ecological succession are actually a symbiotic association of
Disease that occurs irregularly and in relatively few instances, and may be endemic in one region and epidemic in another?
The relationship between two organisms, where both of them benefit from each other is called:
This Structure in fungi is associated with asexual fruiting bodies and is characterized as a globose or flask-shaped fruiting body producing conidia?
Which fungal disease causes circular grey spots with light-colored centers on the leaves of brinjal, later forming black pycnidia, and leads to canker d...
Initial symptom appears in …………………….. months old crop as thin papery white young leaves at the top of the cane in grassy shoot diseas...
Which disease of brinjal is caused by a Phytoplasma and is characterized by the reduction in leaf size, shortened petioles, and stunted, bushy appearanc...
Relevant for Exams:
