simplification 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
If x = 2 + $√3$, then what is $(x^2 + x^{–2})$ equal to?
Answer: (b)
∴ $x^2 + 1/{x^2} = (x + 1/x)^2 - 2$
= $(2 + √3 + 1/{2 + √3})^2 - 2$
= $(2 + √3 + {2 - √3}/1)^2 - 2$ = 16 – 2 = 14
If the unit of weight is ${15}/4$ kg, then what number will $3/2$ quintal represent?
Answer: (d)
∵ 1 quintal = 100 kg
∴ $3/2$ quintal = 100 × $3/2$ = 150 kg
Given, ${15}/4$ kg = 1 unit
1 kg = $4/{15}$ unit
∴ 150 kg = $4/{15}$ × 150 = 40 units
Suppose p * q = 2P + 2q – pq, where p, q are natural numbers. If 8 * x = 4, then what is the value of x?
Answer: (a)
Given, p * q = 2p + 2q – pq
∵ 8 * x = 4
⇒ 2(8) + 2(x) – 8x = 4
⇒ –6x = –12
∴ x = 2
If ${a^2 - 1}/a$ , then what is the value of ${a^6 - 1}/{a^3}$ ?
Answer: (b)
${a^2 - 1}/a$ = 5
⇒${a^2}/a - 1/a$ = 5
⇒a - $1/a$ = 5
${a^6 - 1}/{a^3} = {a^6}/{a^3} - 1/{a^3} = a^3 - 1/{a^3}$
$a^3 - 1/{a^3} = (a - 1/a)^3 + 3.a. 1/a(a - 1/a)$
= $(5)^3$ + 3 × 5 = 125 + 15 = 140
ibps rrb clerk asst multipurpose prelims 2024 IMPORTANT QUESTION AND ANSWERS
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Top Aptitude Time & Distance Questions PDF: IBPS RRB Clerk »
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IBPS RRB Clerk 2024: Aptitude Simplification Questions PDF »
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Top Aptitude Time & Work Questions: IBPS RRB Clerk 2024 »
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IBPS RRB Clerk 2024: Number System Questions and Answers »
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IBPS RRB Clerk Prelims 2024: LCM & HCF Questions, Answers »
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IBPS RRB Clerk 2024 Aptitude Percentage Questions Test PDF »
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