Let the number of teachers in school A = 5x Then the number of boys in school A = 7x According to the question, => 5x + 7x = 84 × 2 => x = 14 So, number of teachers in school A = 5 × 14 = 70 Number of boys in school A = 7 × 14 = 98 Number of girls in school B = 84 × (9/7) = 108 Number of girls in school C = 140 – 108 = 32 Number of boys in school C = 98 + 2 = 100 Number of teachers in school B = 168 × (13/24) = 91 Number of boys in school B = 168 – 91 = 77 Number of teachers in school C = 91 + 11 = 102 Number of boys in school C = 98 + 2 = 100 
Required average = (98 + 100)/2 = 99
Which of the following hormones is released in excess quantity during excitement?
What is the primary nitrogenous waste product excreted by humans?
Workers in leather tanning industries often suffer from which type of health issues?
The later (second) formed primary xylem elements are called:
What is the structural and functional unit of the kidneys?
Which muscle is recognized as the longest in the human body?
Sycon (Scypha), Spongilla (Freshwater sponge), and Euspongia (Bath sponge) are examples of which phylum?
Urine is produced in ______.
The yellow color of human urine is due to which substance?
Which cells give rise to various organs of the plant and keep the plant growing?
