alphabet and numbers arrangement mcq Model Questions & Answers, Practice Test for ssc chsl tier 1 2024

Directions:

The following questions are based on the five three digit numbers given below:

574 658 821 945 247

Question :1

If in each number the first two digits are replaced by their sum then which number will be the largest?

Answer: (c)

In 124,118,101,135,67. Largest no. is 135 which come from 945.

Question :2

If in each number the position of 1st and the 2nd digit are interchanged which number will be the smallest?

Answer: (d)

after changing first and second digit the number be 754,568,281,495,427. So smallest number 821comes from 281.

Question :3

If in each number, all the three digit are arranged in ascending order within the number which of the following will be the highest number?

Answer: (b)

after arranging each digit in ascending order the number become 457, 568,128,459,247.

So highest number which is 568 comes from 658.

Question :4

If 1 is subtracted from the 1st digit of each number then how many numbers thus formed will be divisible by three?

Answer: (c)

after subtracted 1 to from each 1st digit of each number, the number become 474,558,721,845,147.

Only 474, 558 and 147 are divisible by three

Question :5

If one is added to the last digit of each of the numbers, in how many numbers thus formed will the last digit be a perfect square (1 is also be a perfect square)?

Answer: (a)

after adding 1 last digit = 5,9,2,6,8 only 9 is a perfect square.

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