mensuration area volumes Model Questions & Answers, Practice Test for ibps so prelims 2023
ibps so prelims 2023 SYLLABUS WISE SUBJECTS MCQs
Number System
Simplification
Ratio & Proportion
Profit & Loss
Time & Work
Simple Interest & Compound Interest
Mensuration: Area & Volumes
Quadratic Equations
A right circular cone has height 8 cm. If the radius of its base is 6 cm, then what is its total surface area?
Answer: (d)
Total surface area of cone = $πR^2 + πLR$
= πR$[R + √{R^2 + H^2}] ∵ 1 = √{R^2 + H^2}$
= π × 6(6 + 10) = 96π $cm^2$
From a solid cylinder whose height is 8 cm and of base radius 6 cm, a conical cavity of height 8 cm and of base radius 6 cm is formed by hollowing out. What is the inner surface area of the cavity.
Answer: (d)
Since the conical cavity in the cylinder is hollowed out, therefore inner surface area of the cavity is curved surface area of the cone.
Therefore, CSA of the cone = πrl = π . 6. $√{8^2 + 6^2}$
= π.6. $√{64 + 36 = 100}$ = π . 6.10 = 60π
E is the mid-point of the median AD of a ΔABC, If BE produced meets the side AC at F, then CF is equal to
Answer: (c)
We draw a line segment parallel to BF
In ΔADG, ∼
BF or EF || DG and AE = ED (since, E is mid-point of ∼ AD) ∼
∴ AF = GC ... (i) ∼
Similarly, in ΔBCF, ∼
DG || BF and BD = DC ∼
FG = GC ... (ii) ∼
From Eqs. (i) and (ii), ∼
CF = $2/3$ AC
ABCD is a rectangle. The diagonals AC and BD intersect at O If AB = 32 cm and AD = 24 cm, then what is OD equal to ?
Answer: (c)
AB = 32, AD = 24 OD = ?
$DB^2 = 32^2 + 24^2$
= $8^2 [4^2 + 3^2]$
$DB^2 = 8[5^2] = (40)^2$
DB = 40
OD = 20
ABCD is a quadrilateral such that AD = DC = CA = 20 units, BC = 12 units and ∠ABC = 90°. What is the approximate area of the quadrilateral ABCD ?
Answer: (b)
Area = $√3/4 × 20^2 + 1/2$ × 16 × 12
= 269.2
ibps so prelims 2023 IMPORTANT QUESTION AND ANSWERS
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200+ Surface Area & Volume MCQ Test Quiz For IBPS SO 2023 »
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Top 150+ Number System Aptitude MCQ PDF For IBPS SO 2023 »
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Top 200+ Quadratic Equation MCQ Test PDF For IBPS SO 2023 »
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New Simplification Aptitude Questions For IBPS SO Prelims »
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200+ Time and Work Questions with Solutions IBPS SO 2023 »
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Profit and Loss Solved Questions For IBPS SO Prelims 2023 »
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New Simple and Compound Interest MCQ PDF For IBPS SO 2023 »
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Top 150 Ratio and Proportion MCQ Test For IBPS SO Prelims »
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