App Logo

No.1 PSC Learning App

1M+ Downloads
How many such 7's are there in the following number sequence which are immediately followed by 4 and immediately preceded by 8. 5 4 7 8 9 7 4 3 8 7 5 7 4 8 7 4 1 2 7 4 5 7 9 4

A2

B3

C4

D1

Answer:

D. 1

Read Explanation:

Preceded by [8][7][4] followed by 5 4 7 8 9 7 4 3 8 75 7 4 [8][7][4] 1 2 7 4 5 7 9 4


Related Questions:

Seven boxes, P, Q, R, S, T, U and V, are kept one over the other but not necessarily in the same order. Only three boxes are kept below R. S is immediately below Q. V is immediately below T. P is immediately above Q. S is third box from top. T is not immediately below R. Which is the third box from the bottom?
Nine people, 1 to 9, are sitting in a straight row, facing the north. 8 is sitting in the middle of the row and his immediate left and right neighbours are 5 and 1, respectively. 9 is sitting at one of the extreme ends and his immediate right neighbour is 2. Only five people are there between 2 and 3. 3 is sitting between 7 and 6. 1 and 7 are immediate neighbours. How many people are there between 4 and 6?
A, B, C, D, E and F are sitting around a circular table, facing the centre. E sits third to the right of A. C sits to the immediate left of F. F is not an immediate neighbour of A. B sits to the immediate right of D. The position of how many persons will remain unchanged, if all the persons are arranged in the English alphabetical order in the clockwise direction, starting from A (including A)?
Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. R has an exam on Wednesday. Exactly 3 people have an exam between R and U. V has an exam immediately after S and Q has an exam immediately before S. Only 3 people have an exam between P and S. Who has an exam on Monday?
Five persons (R, S, T, U, V) are in a queue facing a counter. Immediately behind S is U. T is standing between Rand V. In between R and U no one is there. Then who is standing at the first position?