Challenger App

No.1 PSC Learning App

1M+ Downloads
In a class of 60 students, where the number of girls is twice that of the boys, a boy, ranked 20th from the top. If there are 7 girls ahead of the boy, then the number of boys in rank after him is:

A6

B7

C8

D9

Answer:

B. 7

Read Explanation:

Solution: Given statement, The total strength of the class = 60 Boys : Girls = 1 : 2 This means 20 boys and 40 girls are there in the class. The rank of 'boy' from the top is 20th This means 19 students ahead of the 'boy' and 7 girls ahead of the 'boy'. So 12 are boys. Total boys = 20 Ahead of boy = 12 After boy = 20 - 12 - 1 = 7 boys Hence, "Option (2)" is the correct answer.


Related Questions:

P, Q, R, S, T and U are sitting on a bench. Q is at the right end. R is sitting to the immediate right of S. U is sitting to the immediate left of T, and T is sitting to the immediate left of Q. P is sitting to the immediate left of S. Who is sitting at the left end?
ഒരു നിരയിൽ രാധ ഇടത്തുനിന്ന് ഇരുപതാമനും കൃഷ്ണൻ വലത്തുനിന്ന് പതിനഞ്ചാമനുമാണ്. അവർ പരസ്പരം സ്ഥാനം മാറുമ്പോൾ കൃഷ്ണൻ വലത്തു നിന്ന് 25 ആകും. എന്നാൽ ആ വരിയിൽ ആകെ എത്ര പേരുണ്ട് ?
ABCDEF എന്നിവർ വട്ടത്തിൽ ഇരിക്കുന്നു B,F & C യുടെ ഇടയിൽ A,E&D യുടെ ഇടയിൽ F,D യുടെ ഇത്തായും നിൽക്കുന്നു A&F ന്റെ ഇടയിൽ ആരാണ് ?

Eight people – A, B, C, D, E, F, G and H are sitting around a square table (not necessarily in the same order) in such a way that four of them who are sitting at the corners of the table facing outside while other four who are sitting in the middle of each of the four sides are facing inside. Two people who are facing the same direction (either inside or outside) are not sitting with each other. D is not facing inside. G is sitting fifth to the right of D. A is sitting just opposite to G. E is sitting third to the right of A. B is sitting second to the left of E. Neither A nor D is an immediate neighbour of C. F is not sitting just opposite to C.

Who among the following is/are not sitting between C and E, when counted from the left of E?

Look at this series 4, 12, 14, 42, 44 ? What number should come next?