Arithmetical Reasoning section 2 MCQ Detailed Explanation And More Example

Question : 1

A box contains five sets of balls while there are 3 balls in each set. Each set of balls has one color which is different from every other set, what is the least number of balls that must be removed from the box in order to claim with certainty that a pair of balls of the same colour has been removed?

a) 8

b) 6

c) 7

d) 9

Question : 2

In a cricket team, three batsman Ricky, Sachin and Brian are the top three run-scorers in any order. Each of them gives two replies to any question, one of which is true and the other is false, again, in any order. When asked about who the top scorer was, following were the replies they gave :
Sachin : I got the top score. Ricky was second.
Brain : I got the top score. Sachin was second
Ricky : I got the top score. Sachin was third.
Which of the following is the correct order of batsmen who got the top score, second best and third best score respectively?

a) Ricky, Sachin, Brain

b) Brain, Ricky, Sachin

c) Brain, Sachin, Ricky

d) Sachin, Brain, Ricky

Question : 3

Six identical cards are placed on a table. Each card has number '1' marked on one side and number '2' marked on its other side. All the six cards are placed in such a manner that the number '1' is on the upper side. In one try, exactly four (neither more nor less) cards are turned upside down. In how many least number of tries can the cards be turned upside down such that all the six cards show number '2' on the upper side ?

a) 7

b) 3

c) 5

d) This cannot be achieved

Question : 4

The total number of digits used in numbering the pages of a book having 366 pages is

a) 1098

b) 732

c) 990

d) 1305

Question : 5

3 truck drivers went to roadside cafe. 1st purchased 4 sandwiches, 1 coffee, 10 biscuits and paid Rs. 1.69. 2nd purchased 3 sandwiches, 1 coffee, 7 biscuits and paid Rs. 1.26. What did 3rd truck driver pay for a sandwich, a cup of coffee, and one biscuit ?

a) 68 paise

b) 35 paise

c) 89 paise

d) 40 paise