Question
The average height of each student in a class of 36
students is 169 cm. If 4 new students joined the class, then the average height of the each student in the class increases by 9 cm. Find the average height of 4 new students who joined the class.Solution
Total height of 36 students of the class = 169 × 36 = 6084 cm When 4 new students joined the class, average height of each student = 169 + 9 = 178 cm Total height of 40 students of the class = 178 × 40 = 7120 cm Average height of 4 new students who joined the class = {(7120 – 6084)/4} = 1036/4 = 259 cm
Chiasmata formation takes place during which stage of Prophase I?
The black arm or angular leaf spot of cotton is caused by:
Foot and mouth disease is-
Identify the correct order of atmospheric layer arrangement from the surface of the earth to the top layer of atmosphere.
According to 4th Advance estimate for 2021-22 of agriculture crops, the total food grain production has been estimated to beÂ
Reduction in dry matter, decrease in amino acid content and accumulation of nitrates is the deficiency symptoms of:
Chemical fertilizers are not applied in Isabgol because
Which one of the following crop is commonly associated with Orabancho weed?
Which series does the Agricultural Census of 2015-16 belong to, and what is the time gap, expressed in years, between successive Agricultural Censuses w...
_________ is a part of the National Rural Livelihood Mission (NRLM) which aims to skill rural youths (15-35 years) into an economically independent and ...
Relevant for Exams:
