App Logo

No.1 PSC Learning App

1M+ Downloads
ഒരു ഗ്രൗണ്ടിൽ കുറേ ബൈക്കുകളും കാറുകളും ഉണ്ട്. ആകെ 46 ചക്രങ്ങളും 20 വാഹനങ്ങളും ഉണ്ടെങ്കിൽ കാറുകളുടെ എണ്ണം എത്ര?

A3

B5

C4

D8

Answer:

A. 3

Read Explanation:

ചക്രങ്ങളുടെ എണ്ണത്തിന്റെ പകുതിയിൽ നിന്ന് വാഹനങ്ങളുടെ എണ്ണം കുറച്ചാൽ കാറുകളുടെ എണ്ണം കിട്ടും. OR കാറുകളുടെ എണ്ണം X , ബൈക്കുകളുടെ എണ്ണം Y ആയാൽ X + Y = 20.........(1) ആകെ 46 ചക്രങ്ങൾ 4X + 2Y = 46 ..... (2) (1) × 2 2X + 2Y = 40 ....... (3) (2) - (3) 2X = 6 X = 3


Related Questions:

Some boys are sitting in a row P is sitting 14th from the left and Q is 7th from the right. If there are four boys between P and Q how many boys are there in the row ?
Seven people, A, B, C, D, E, F and G are sitting in a row, facing north. Only three people sit between E and B. G sits to the immediate left of B. No one sits to the right of D. Only two people sit between D and G. C sits to the immediate right of A. How many people sit to the right of B?
There are five different houses A to E in a row. A is to the right of B and E is to the left of C and right of A. B is to right of D. Which of the houses is in the middle?
Ten people P, Q, R, S, T, U, V, W, Y, and X are sitting on a pentagonal shaped table but not necessarily in the same order. 5 are seating at the corners while 5 of them are in the middle of sides of the pentagon. All are facing inside the table. No person sits between P and X. R is sitting between Y and W, who is fourth to the right of P. R is not Sitting at any corner. T is sitting second to the left of X. W and Q are the immediate neighbors of V. S is an immediate neighbor of Y. X is neither an immediate neighbor of Y nor Q. Who among the following does not sits at any of the extreme corners?
Read the following passage carefully and answer the questions given below. P, Q, R, S, T, U, V and W are sitting around a circular table, facing the centre. P sits third to the left of R and second to the right of T.Q sits second to the right of S, who is not an immediate neighbour of T.W sits second to the left of U.V is not an immediate neighbour of S. Who sits third to the right of T?