Question
Four of the following five are alike in a certain way
and hence form a group. Find the one that doesn’t belong to that group. Study the following information carefully and answer the given below. Nine persons- J, K, L, M, N, O, P, Q and R are living in a nine-storey building but not necessarily in the same order. The bottommost floor is numbered as 1 and the floor immediately above it is numbered as 2 and so on. M lives on an even numbered floor but above fifth floor. Only three persons live between M and L. J lives two floors above L. P lives immediately above J. Only one person lives between P and K, who lives above J. As many floors below K as above O. R lives above Q but below N, who doesn’t live on the topmost floor.Solution
We have, M lives on an even numbered floor but above fifth floor. Only three persons live between M and L. From the above condition, there are two possibilities Again we have, J lives two floors above L. P lives immediately above J. Only one person lives between P and K, who lives above J.
Again we have, As many floors below K as above O. R lives above Q but below N, who doesn’t live on the topmost floor. So Case1 gets eliminated, hence the final arrangement becomes
For A = [[2,3],[-1,4]], find det(2A).
A man spends 30% of his salary on rent, 25% on groceries, and the remaining on savings. If he saves ₹18,000, what is his total salary?
Determine the mean of the following observations:
24, 26, 22, 25, 20, 21, 24, 251153, 1206, ?, 1326, 1393, 1464
Solve the quadratic equations and determine the relation between x and y:Â
Equation 1: x² + 2x - 15 = 0
Equation 2: y² - 4y - 12 = 0
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