percentage Model Questions & Answers, Practice Test for ibps rrb clerk asst multipurpose prelims 2024

ibps rrb clerk asst multipurpose prelims 2024 SYLLABUS WISE SUBJECTS MCQs

Number System

Lcm & Hcf

Simplification

Percentage

Time & Work

Time & Distance

Question :6

HR company employees 4800 people, out of which 45 percent are males & 60 percent of the males are either 25 years or older. How many males are employed in that HR company who are younger than 25 years ?

Answer: (d)

Male employees less than 25 years of age

= $4800 × 45/100 × 40/100$ = 864

(∵ 60% are above 25, therefore it implies that 40%, are below 25)

Question :7

20.06% of 599 + 10.01% of 901 = ?

Answer: (b)

20.06%of 599 + 10.01% of 901 = ?

≈ $600 × 20/100 + 900 × 10/100$ = ?

≈ 120 + 90 = ?

∴ ? ≈ 210

Question :8

8926 – ? % of 650 = 8848

Answer: (c)

$8926 - ?/100 × 650$ = 8848

$?/100 × 650$ = 8926 – 8848 = 78

? = ${78 × 100}/650$ =12

Question :9

The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of wheat so that the percentage of low quality wheat becomes 5%?

Answer: (c)

Weight of low quality of wheat in 150 kgs of wheat

= ${150 × 10}/100$ = 15 kg.

Suppose that x kgs of good quality wheat is mixed.

According to the question,

${(x + 150) × 5}/100$ = 15

or, x = 150 kg.

Question :10

A student was awarded certain marks in an examination. However, after re–evaluation, his marks were reduced by 40% of the marks that were originally awarded to him so that the new score now became 96. How many marks did the student lose after re–evaluation?

Answer: (e)

Let the marks originally awarded be x.

x – 40% of x = 96

x – ${40x}/100$ = 96

${60x}/100$ = 96,

∴ $x = {96 × 100}/60$ = 160.

Marks lost = 160 × 40% = 64

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