Question
The student's marks were wrongly entered as 55 instead
of 25. Due to this, the average marks for the class increased by 1 /4 The number of students in the class is:Solution
Actual mark of a student =25 but wrongly entered = 55 wrongly increased marks = 55-25 =30 so now - Let the number of students = x Increased average marks = 1/3 30/x =1/4 x =120
Which of the following statements is true about Entomology?
“Clipping” the tips of the rice seedling before transplanting reduces the infestation of __________
The silkworm larva ceases to eat and begins spinning silk all over its body from ____
Which of the following statements is true for Entomophagy?
Which of the following insects is the carrier of grassy stunt pathogenic virus?
What is the term used to describe the average density of a pest population around which it fluctuates due to biotic and abiotic factors in the absence o...
 Apis mellifera is also known as
Which of the following is correctly matched ?
This Chemical known as “Apple Factor” which is released by Malus sp. and acts as an attractant to Aphis pomi is:
This leg type is observed in insects like the praying mantis, featuring spiny femurs and tibiae that interlock to form a gripping mechanism
Relevant for Exams:
