Question
The average height of each student in a class of 25
students is 130 cm. If 10 new students joined the class, then the average height of the each student in the class increases by 4 cm. Find the average height of 10 new students who joined the class.Solution
Total height of 25 students of the class = 130 times; 25 = 3250 cm When 10 new students joined the class, average height of each student = 130 + 4 = 134 cm Total height of 35 students of the class = 134 times; 35 = 4690 cm Average height of 10 new students who joined the class = {(4690 ndash; 3250)/10} = 1440/10 = 144 cm
Statements : R < O ≤ P < Q; M < L ≤ N > O; S < Q ≤ K
Conclusions:
I. M < K
II. N > R
III. O < S
In the question, assuming the given statements to be true, find which of the following conclusion(s) among the three conclusions is/are definitely tru...
If '>' denotes '+', '<' denotes '-', '-' denotes '×', '×' denotes '÷', '÷' denotes '=', then choose the correct statement of the following.
...In the question, assuming the given statements to be true, find which of the conclusion (s) among given three conclusions is/are definitely true and t...
Statements: N # L, L @A, A % I, I & E
Conclusions :
I.E $ L
...Statements: E # L, L @ U, U $ N, N % K
Conclusions: I. K @ U II. K % U III. E @ U
...In each of the questions below are given some statements followed by two conclusions. You have to take the given statements to be true even if they see...
Statement: A ≤ B ≤ C > D; E < D; F > E
Conclusions: I. D > A II. E < C
...Which of the following symbols should replace the question mark (?) in the given expression in order to make the expressions ‘N > S’, and ‘S < V�...
Statements: X < H = U ≤ I < N = M, M > B ≥ V
Conclusions:
I. I > V
II. U ≥ M
