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:
The ratio of income of two workers A and B are 3: 4. The ratio of expenditure of A and B is 2: 3 and each saves Rs 200. Find the income of A and B.
The bus fare between two cities is increased in the ratio 5:11. Find the increase in the fare, if the original fare is Rs. 275.
10,000 രൂപ രണ്ട് പേർ ഭാഗിച്ചപ്പോൾ രണ്ടാമന് ഒന്നാമനേക്കാൾ 3,000 രൂപ കൂടുതൽ കിട്ടി. അവർ ഭാഗിച്ച അംശബന്ധം ഏത് ?
Mohan, Rahul, and Geeta enter into a partnership. They invest 35,000, ₹75,000, and 1,05,000, respectively. At the end of the first year, Rahul withdraws 25,000, while at the end of the second year, Geeta withdraws 75,000. In what ratio will the profit be shared at the end of 3 years?
What will be the duplicate ratio of 2 : 7 ?