Challenger App

No.1 PSC Learning App

1M+ Downloads
In a class of 60, where girls are twice that of boys, Gopu ranked seventeenth from the top. If there are 9 girls ahead of Gopu, how many boys are after him in rank?

A12

B23

C3

D7

Answer:

A. 12

Read Explanation:

Total number of students = 60 GIRLS : BOYS = 2 : 1 = 2X : 1X 3X = 60 X = 60/3 = 20 No. of girls = 40 No. of boys = 20 Gopu is 17th from top there are 9 girls ahead of gopu Total girls behind gopu = 40 - 9 = 31 Total students behind gopu = 60 - 17 - 43 Number of boys after Gopu = 43 - 31 = 12


Related Questions:

Six students P, Q, R, S, T and U sit in a straight line, facing north. P and S are sitting at the extreme ends of the line. T is sitting adjacent to P, while U is sitting adjacent to S. Only one person sits between Q and S. Who is sitting adjacent to Q apart from R?
Vivek was counting down from 32. Sarat was counting upwards the numbers starting from 1 and he was calling out only the odd numbers. What common number will they call out at the same time if they were calling out at the same speed?
I, J, K, L, P, Q and R are sitting around a square table facing the centre of the table. Only two people sit to the right of K. Only two people sit between K and R. Only two people sit between I and Q. Q sits to the immediate left of K. L sits to the immediate right of P. Who sits at the third position from the left end of the line?

Six people are sitting in two parallel rows with 3 people each, in such a way that there is equal distance between adjacent persons. P, O and T are seated in the same row facing South. A, E and R are seated in the same row facing North. E sits at the extreme right end of their row and is exactly opposite T. A sits at the extreme left end of their row and is exactly opposite O. (Persons facing south are exactly opposite to persons facing north)

Who sits at the centre of the row of people facing South? 

6 പേർ ഒരു നിരയിൽ യിൽ ഇരിക്കുന്നു Y ആണ് X നും R നും ഇടയിൽ ഇരിക്കുന്നത് X ആണ് Z നു അടുത്ത ഇരിക്കുന്നത് അങ്ങേയറ്റം ഇടതുവശത്തു ഇരിക്കുന്ന P യുടെ അടുത്തു Z ഇരിക്കുന്നു . Q , R നു അടുത്ത് ഇരിക്കുന്നു X നോട് ചേർന്ന് ഇരിക്കുന്നത് ആരൊക്കെ ?