The average height of each student in a class of 36 students is 169 cm. If 4 new students joined the class, then the average height of the each student in the class increases by 9 cm. Find the average height of 4 new students who joined the class.
Total height of 36 students of the class = 169 × 36 = 6084 cm When 4 new students joined the class, average height of each student = 169 + 9 = 178 cm Total height of 40 students of the class = 178 × 40 = 7120 cm Average height of 4 new students who joined the class = {(7120 – 6084)/4} = 1036/4 = 259 cm
In which of the following combination both the persons are facing towards each other?
Who among the following faces Umesh?
How many seats are between P and O when counted from the left of O?
Seven persons, P, Q, R, S, T, U and V sit in a linear row and face in the north direction, but not necessarily in the same order. Two persons sit betwee...
If ‘X’ is related to ‘W’ and ‘T’ is related to ‘S’ in a certain way, then ‘U’ is related to which of the following?
...Which of the following statement is true?
Which of the following statement is true?
Who sits fourth to the left of G?
Who among the following lives on floor numbered 5?
Seven persons are sitting in a row. M is sitting with P and R, O is sitting with R and S, who is sitting with O and Q and P is sitting with N and M. Who...