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CDS Exam Pattern, CDS Questions with Answers Page 6

(#M40003270) CDS QUESTION Elementary MAthematics Keep an EYE

A boy buys mangoes at Rs. 4 a score and a man buys the same kind of mangoes at 3 rupee a dozen. Who makes the better bargain?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003269) CDS QUESTION Elementary MAthematics Keep an EYE

Gold and copper are heavier that water by 19 and 9 times respectively. In what proportion should they mixed to form an alloy so that it will be heavier that water by 12 times?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003268) CDS QUESTION Elementary mathematics Keep an EYE

Successive discount of 15% and 20% on any good amount to total discount of?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003238) CDS QUESTION Elementary Mathematics Keep an EYE

Three lines intersect in pairs. What is the number of angles so formed ?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003237) CDS QUESTION Elementary Mathematics Keep an EYE

Consider the numbers between 300 and 400 such that when each number is divided by 6,9 and 12, it leaves 4 as remainder in each case. What is the SUM of the numbers?

Solution

Numbers satisfying the condition that it leaves 4 as remainder when divided by 6 are 310,316,322,328,334,340,346,352,358,364,370,376,382,388,394
Numbers satisfying the condition that it leaves 4 as remainder when divided by 9 are 310,319,328,337,346,355,364,373,382,391
Numbers satisfying the condition that it leaves 4 as remainder when divided by 12 are 316,328,340,352,364,376,388
common numbers are 328,364 so sum = 692

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Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003236) CDS QUESTION Elementary Mathematics Keep an EYE

A cylinder having a base of circumference 60 cm is rolling without sliding at the rate of 5 rounds per second. How much will the cylinder roll in 5 seconds ?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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(#M40003235) CDS QUESTION Elementary Mathematics Keep an EYE

What will be the last two digits of 2^(12n)-6^(4n), where n is positive integer?

Asked In CDS CHANDAN KR SINGH (14 years ago)

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