Super Session of Math’s The Gurukul of Math’s 27 …...The Gurukul of Math’s By Sahil Sir Join...

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Q.1. A and B together can complete a work in 24 days. B alone

does 1/3rd part of this work in 12 days. How many days

will A alone take to complete the remaining work?

A और B मिलकर ककसी कार्य को 24 दिन िें पूरा कर सकत ेहै।

B उस कार्य का 1/3 भाग 12 दिन िें पूरा कर सकता है। अकेला A शेष कार्य को ककतने दिन िें पूरा करेगा?

1) 24 2) 36

3) 48 4) 72

Q.2. The height of a cone and a cylinder are equal. The radii

of their bases are in the ratio 2 : 1 the ratio of their

volumes is-

एक शंकु तथा एक बेलन की ऊँचाई सिान है। उनके आधारों की त्रिज्‍र्ाऍ ं2 : 1 के अनुपात िें है। इनके आर्तनों का अनुपात क्‍र्ा होगा?

1) 4 : 3 2) 3 : 4

3) 2 : 1 4) 1 : 2

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Q.3. A shopkeeper marks his goods 50% more than the cost

price and allows a discount of 25%. His profit or loss

percentage is:

एक िकुानिार अपनी वस्‍तओुं पर लागत िूल्‍र् स े50% अधधक

िूल्‍र् अंककत करता है और 25% की छूट िेता है। उसका लाभ र्ा हानन प्रनतशत ककतना होगा?

1) 37.5% 2) 25.5%

3) 12.5% 4) 25%

Q.4. A school has 8 periods of 45 minutes each, every day.

How long will each period be if the school has to have 9

periods every day, assuming the working hours to be the

same?

एक स्‍कूल िें प्रनतदिन 45 मिनट के 8 पीररर्ड होत ेहै। र्दि स्‍कूल

िें प्रनतदिन 9 पीररर्ड हो और र्ह िानकर कक कार्य सिान है तो प्रत्‍रे्क पीररर्ड ककतने मिनट का होगा?

1) 40 min/मिनट 2) 35 min/मिनट

3) 30 min/मिनट 4) 45 min/मिनट

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Q.5. If the ratio of the cost price and the selling price of an

article be 4:5, then the percentage of profit is:

र्दि ककसी वस्‍तु के क्रर्िूल्‍र् और ववक्रर् िूल्‍र् 4:5 के अनपुात

िें हो, तो लाभ का प्रनतशत क्‍र्ा होगा?

1) 𝟐𝟕𝟏

𝟐 2) 25

3) 15 4) 10

Q.6. In an ornament the ratio of gold and copper is 3 : 2. The

percentage of gold in the ornament is:

ककसी आभूषण िें सोने तथा त बं ेका अनुपात 3:2 है। आभूषण िें सोने का प्रनतशत ककतना है?

1) 60 2) 40

3) 30 4) 20

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Q.7. A boat moves down stream at the rate of 8 km/hr and

upstream at 4 km/hr. The speed of the boat in still waters

is:

एक नाव धारा की दिशा के अनुकूल 8 ककिी/घंटा की चाल स े

चलती है तथा धारा की दिशा के प्रनतकूल 4 ककिी/घंटा की चाल

से। शान्‍त जल िें नाव की चाल क्‍र्ा होगी?

1) 4.5 km/hr / ककिी/घंटा 2) 5 km/hr / ककिी/घंटा 3) 6 km/hr / ककिी/घंटा 4) 6.4 km/hr / ककिी/घंटा

Q.8. √𝟑𝒏 = 𝟐𝟏𝟖𝟕 then the value of n is

र्दि √𝟑𝒏 = 𝟐𝟏𝟖𝟕, तो n का िान बताऍ।ं 1) 13 2) 14

3) 15 4) 16

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Q.9. If 𝒙 +𝟏

𝒙= 𝟓, then find the value of

𝟔𝒙

𝒙𝟐+𝒙+𝟏

र्दि 𝒙 +𝟏

𝒙= 𝟓, तो 𝟔𝒙

𝒙𝟐+𝒙+𝟏 का क्‍र्ा होगा?

1) 3 2) 2

3) 1 4) 0

Q.10. Which one of the following combination of

measurements can from the sides of a triangle?

नीचे दिरे् गए िाप के सिूहों िें से कौन-सा ववकल्‍प ककसी त्रिभुज

की भजुाऍ ंबन सकता है?

1) 9 cm, 6 cm, 2 cm 2) 11 cm, 3 cm, 12 cm

3) 3 cm, 5 cm, 8 cm 4) 5 cm, 7 cm and 13 cm

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Q.11. In a right angled triangle if hypotenuse is 20 cm and

ratio of other two sides two is 4 : 3, the length of the sides

are

ककसी सिकोणीर् त्रिभुज िें र्दि कणय 20 सेिी हो और अन्‍र् िो भुजाओ ंका अनुपात 4 : 3 है, तो भुजाओं की लम्‍बाई ककतनी है?

1) 4 cm and 3 cm 2) 8 cm and 6 cm

3) 12 cm and 9 cm 4) 16 cm and 12 cm

Q.12. If SinA + Sin²A=1 then what is the value of cot²A +

cos⁴A?

र्दि SinA + Sin²A=1 हो तो cot²A + cos⁴A का िान क्‍र्ा होगा?

1) 𝟏

𝟐 2) 1

3) 2 4) 3

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Q.13. The least number which when divides 37044, gives the

result a perfect cube is:

वह सबस ेछोटी संख्‍र्ा क्‍र्ा है जजससे 37044 को भाग करने पर

पररणािी संख्‍र्ा पूणय घन प्राप्‍त हो?

1) 2 2) 4

3) 14 4) 21

Q.14. A man spends in 8 months as much as he earns in 6

months. He saves ₹ 6000 in a year. His average monthly

income is

कोई व्‍र्जक्त 8 िहीने िें उतना व्‍र्र् करता है जजतना कक वह 6

िहीने िें किाता है वह एक वषय िें ₹ 6000 की बचत करता है।

उसकी औसत िामसक आर् ककतनी है?

1) ₹ 2400 2) ₹ 2000

3) ₹ 2150 4) ₹ 1800

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Q.15. If 𝒂 = √𝟐 + 𝟏 and 𝒃 = √𝟐 − 𝟏, then the value of 𝟏

𝒂+𝟏+

𝟏

𝒃+𝟏 will be

र्दि 𝒂 = √𝟐 + 𝟏 और 𝒃 = √𝟐 − 𝟏 तो 𝟏

𝒂+𝟏+

𝟏

𝒃+𝟏 का िान क्‍र्ा

होगा?

1) 0 2) 1

3) 2 4) –1

Q.16. If 𝟑

(𝒙+𝟐)(𝟐𝒙+𝟑)=

𝒂

𝟐𝒙+𝟏+

𝒃

𝒙+𝟐 be an identity the the value of

b is

र्दि 𝟑

(𝒙+𝟐)(𝟐𝒙+𝟑)=

𝒂

𝟐𝒙+𝟏+

𝒃

𝒙+𝟐 हो, तो b का िान क्‍र्ा है?

1) 0 2) –1

3) 2 4) 3

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Q.17. In triangle 𝐀𝐁𝐂, ∠BAC = 90° and AD is perpendicular

to BC If AD = 6 cm and BD = 4 cm, then the length of BC

is

एक त्रिभुज ABC िें ∠BAC = 90° और AD, BC का लम्‍ब

है। र्दि AD = 6 सेिी और BD = 4 सेिी हो तो BC की लम्‍बाई

है।

1) 10 cm/सेिी 2) 12 cm/सेिी 3) 13 cm/सेिी 4) 15 cm/सेिी

Q.18. D and E are the points on the sides AB and AC

respectively of a ∆ABC and AD = 8 cm, DB = 12 cm, AE = 6

cm and EC = 9 cm, then BC is equal to:

D और E एक ∆ABC की भुजाओ ंAB और AC पर क्रिश: त्रबन्‍ि ु

है और AD = 8 सेिी, DB = 12 सेिी, AE = 6 सेिी और EC

= 9 सेिी हो तो BC ककसके बराबर है?

1) 𝟐

𝟓DE 2)

𝟓

𝟐DE

3) 𝟑

𝟐DE 4)

𝟐

𝟑DE

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Q.19. ABC is a right angled triangle with ∠A=90°, then

the value of cos²A + cos²B + cos²C is

ABC एक सिकोणीर् त्रिभुज है, जजसिें ∠A=90° है, तो cos²A + cos²B + cos²C का िान क्‍र्ा होगा?

1) 1 2) 3

3) 2 4) 4

Q.20. In what time (in years) will ₹ 8000 amount to ₹ 9261 at

5% per annum, compounded annually?

₹ 8000 की रामश 5% की वावषयक िर स ेवावषयक चक्रवदृ्धध ब्‍र्ाज

िर से ककतन ेसिर् (वषों) िें ₹ 9261 हो जाएगी?

1) 3 2) 𝟑𝟏

𝟐

3) 4 4) 𝟒𝟏

𝟐

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Q.21. From the top of a 20 m high building, the angle of

elevation of the top of a tower is 60° and the angle of

depression of it’s foot is at 45°, then the height of the

tower is (√𝟑 = 𝟏. 𝟕𝟑𝟐)

20 िी ऊँची इिारत के शीषय से, ककसी ट वर के शीषय का उन्‍नर्न

कोण 60° है और पाितलों का अवननत कोण 45° है तो ट वर

की ऊँचाई ककतनी है? (√𝟑 = 𝟏. 𝟕𝟑𝟐)

1) 45.46 m 2) 45.64 m

3) 54.64 m 4) 54.46 m

Directions (22-25) : Study the chart an answer the

questions. The pie chart given below shows the

expenditure incurred in bringing out a book by a

publisher.

ननिेश (22-25) : इस चाटय का अध्‍र्र्न कीजजए और प्रश्‍नों के

उत्‍तर िीजजए। नीचे दिए इस पाई चाटय िें एक प्रकाशक द्वारा एक

पुस्‍तक के प्रकाशन िें ककए गए खचय को िशायर्ा गर्ा है

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Q.22. What is the central angle showing the cost of paper

कागज की लागत को िशायने वाले केन्‍रीर् कोण का िाप क्‍र्ा है?

1) 16° 2) 32°

3) 38.9° 4) 57.6°

Q.23. If the cost of printing is ₹ 16,800, the royalty is

र्दि िुरण की लागत ₹ 16,800 हो तो, र र्ल्‍टी ककतनी होगी?

1) ₹ 2400 2) ₹ 3200

3) ₹ 4800 4) ₹ 8400

Printing, 42%

Paper, 16%

Miscellaneous, 2%

Royality, 12%

Canvassing, 24%

Binding, 4%

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Q.24. Royalty on the book is less than canvassing expenditure

by

पुस्‍तक की र र्ल्‍टी, उसके प्रचार-खचय से ककतने प्रनतशत कि है?

1) 25% 2) 50%

3) 24% 4) 12%

Q.25. If miscellaneous expenditures amount to ₹ 12000, the

expenditure on canvassing will be

र्दि ववमभन्‍न ₹ 12000, हो तो प्रचार-खचय ककतना होगा?

1) ₹ 80000 2) ₹ 144000

3) ₹ 468000 4) ₹ 405000

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Step

1

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Step

2

Step

3

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Step 4

St

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Solution

1-C 2-A 3-C 4-A 5-B

6-A 7-C 8-B 9-C 10-B

11-D 12-B 13-B 14-B 15-B 16-B 17-C 18-B 19-A 20-A

21-C 22-D 23-C 24-B 25-B