number system Model Questions & Answers, Practice Test for ibps so prelims 2023

Question :21

If all the fractions $3/5, 1/8, 8/11, 4/9, 2/7, 5/7$ and $5/12$ are arranged in the descending order of their values, which one will be the third?

Answer: (e)

$3/5 = 0.6, 1/8 = 0.125,$

$8/11 = 0.727, 4/9 = 0.44,$

$2/7 = 0.285, 5/7 = 0.714,$

$5/12 = 0.416$

Descending order :

$8/11, 5/7, 3/5, 4/9, 5/12, 2/7, 1/8$

So, $3/5$ is the third.

Question :22

What is 963 times 788 ?

Answer: (d)

963 × 788 = 758844

Question :23

Which one of the following three-digit numbers divides 9238 and 7091 with the same remainder in each case ?

Answer: (c)

Difference between the digit = 9238 – 7091 = 2147

2147 is completely divided by 113.

Question :24

What is 768 times 859?

Answer: (d)

Required product = 768 × 859 = 659712

Question :25

The product of a rational number and an irrational number is

Answer: (a)

We know that the product of a rational number and an irrational number is an irrational number.

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