Arithmetical Reasoning section 2 MCQ Detailed Explanation And More Example

Question : 1

In three coloured boxes - red, green and blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ?

a) 45

b) 18

c) 36

d) None of these

Question : 2

If every 2 out of 3 ready made shirts need alterations in the sleeves, and every 4 out of 5 need it in the body, how many alterations will be required for 60 shirts?

a) 133

b) 88

c) 123

d) 143

Question : 3

If the last four letters of the word 'CONCENTRATION' are written in reverse order followed by next two in the reverse order and next three in the reverse order and then followed by the first four in the reverse order, counting from the end which letter would be eighth in the new arrangement ?

a) E

b) N

c) T

d) R

Question : 4

The letters L, M, N, O, P, Q, R, S and T in their order are substituted by nine integers 1 to 9 but not in that order. 4 is assigned to P. The difference between P and T is 5. The difference between N and T is 3. What is the integer assigned to N?

a) 4

b) 7

c) 5

d) 6

Question : 5

There are 3 societies A, B, C having some tractors each. A gives B and C as many tractors as they already have. After some days B gives A and C as many tractors as they have. After some days C gives A and B as many tractors as they have. Finally each has 24 tractors. What is the original No. of tractors each had in the beginning?

a) A-21, B-12, C-29

b) A-29, B-21, C-12

c) A-39, B-21, C-12

d) A-21, B-12, C-39

Question : 6

First bunch of bananas has (1/4) again as many bananas as a second bunch. If the second bunch has 3 bananas less than the first bunch, then the number of bananas in the first bunch is

a) 12

b) 9

c) 10

d) 15