In an Aerobic class, the average age of all the members was 54.5 years, 11 members left the class and 7 new members joined. If the average age increased by 3 years and the total age decreased by 140, what was the number of members in the class initially?
Let the original member be x Total age of these members = 54.5x Total age of (x – 4) members = (54.5x – 140) years According to the question, 54.5x – 140 = (x – 4) `xx` 57.5 ⇒ 54.5x – 140 = 57.5x – 230 ⇒ 57.5x – 54.5x = 230 – 140 ⇒ 3x = 90 x = 30
Which chemical is used for de-greening of fruit?
Disease free plants in micro propagation can be obtained through _________.
Ability of a pathogen to cause infection (disease) is known as
Which fruit is also referred to as "Bathroom fruit" ?
In the C4 pathway, which of the following molecules combines with carbon dioxide?
What is the primary role of heat-shock proteins (HSPs) in plants under high-temperature stress?
Rubberification is a disorder related to which of the following crop?
The milling and polishing of raw rice reduces riboflavin by
Bud necrosis in groundnut is transmitted by
Which of the following is an antifungal and an antibiotic?