The average marks obtained by 180 students in an examination is 50. If the average marks of passed students is 80 and that of failed students is 40, then what is the number of students who failed the examination?
A90
B135
C100
D45
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
ഒരു ചതുരത്തിൻറ വശങ്ങൾ 3:2 എന്ന അംശബന്ധത്തിലാണ്. താഴെ പറയുന്നതിൽ ഏത് അതിൻറ ചുറ്റളവാകാം?
There are 3 containers of equal capacity which are equally filled where 1/4 part of liquid from the first container was shifted into the second container and 1/2 part of initial quantity from the second container was shifted into the third container then what will be the ratio of final quantity of liquid in all the containers after the shifting has been stopped?
ഒരു ത്രികോണത്തിലെ കോണുകളുടെ അംശബന്ധം 3:4:5 ആണെങ്കിൽ വലിയ കോൺ എത്ര ?
In one glass, milk and water are mixed in the ratio 3:5 and in another glass they are mixed in the ratio 6:1 In what ratio should the contents of the two glasses be mixed together so that the new mixture contains milk and water in the ratio 1:1?
Three friends divided Rs. 624 among themselves in the ratio 1/2 : 1/3 :1/4. The share of the third friend is ?