Day 198: CDS Maths

5 questions (7 parts). Try each one first, then open its answer.

Question 1
Mensuration 2D. Asked once: CDS 2 2018 (same type asked 4 times) See all 4 of this type
72 $l$
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Question 2
Simple and Compound Interest. Asked once: CDS 2 2022 (same type asked 4 times) See all 4 of this type
40 $If C is the compound interest on Rs. 10,000 for one year at 4% per annum when compounded quarterly, then which one of the following is correct ?$
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Question 3
Surds, Indices and Simplification. Asked once: CDS 1 2018 (same type asked 4 times) See all 4 of this type
18 $\frac{\sqrt{5} - \sqrt{3}}{\sqrt{5} + \sqrt{3}} - \frac{\sqrt{5} + \sqrt{3}}{\sqrt{5} - \sqrt{3}}$
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Question 4 (case study, 3 parts)
Triangles. Asked once: CDS 2 2021 (same type asked 4 times) See all 4 of this type
Consider the following for the next three (03) items that follow : $ABC$ is a triangle with $AB = 1.6$ cm, $BC = 6.3$ cm and $CA = 6.5$ cm. Let $P$ and $Q$ be the mid-points of $AB$ and $BC$ respectively.
86 $AB^2 + 4BQ^2$
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87 $AQ^2 + CP^2$
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88 $4(CP^2 - AQ^2)$
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Question 5
Trigonometric Ratios and Identities. Asked once: CDS 1 2021 (same type asked 4 times) See all 4 of this type
58 $6 + 8\tan\theta = \sec\theta$
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Question 1