super session of math’s 23 oct. the gurukul of math’s...the gurukul of math’s by sahil sir...
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The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Q.1. A can do a piece of work in 20 days and B in 15 days.
With help of C, they finish the work in 5 days. C can
alone do the work in:
A किसी िाम िो 20 किन में िर सिता ह ैऔर B 15 किन में िर
सिता ह ैC िी सहायता स े5 वें किन में िाम समाप् त िर ेते ेह। C
अिेेा उस िाम िो कितन ेकिन में िरेगा?
1) 5 days 2) 6 days
3) 10 days 4) 12 days
Q.2. A Spherical lead ball of radius 6 cm is melted and
small lead balls of 3 mm are made. The total number of
possible small lead balls is :
6 सेमी त्रिज् या वाेी ि गोे सीस ेिी ल े िो त्रलाेा िर 3
त्रममी त्रिज् या वाेी टो ी-टोअी सीस ेिी ल े ेलनाई जाती ह ै सीस े
िी टो ी ल ेों िी सभंात्रवत सखं् या या होगी ?
1) 4250 2) 4000
3) 8005 4) 8000 5) None of these
Q.3. At what percentage above the cost price must an
article be marked so as to gain 33% after allowing a
customer a discount of 5%?
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
किसी वस् त ुिे रयमयम् य स ेपलर कितन े्रतत्रततत उसिी अकंित िीमत
रखी जा कि ग्राहि िो 5% िी ट् िेन ेिे ्रतश् चात ििुानिार िो
33% िा ेाभ हो ?
1) 40% 2) 45%
3) 35% 4) 47%
Q.4. The four sides of a quadrilateral are in the ratio of 2 :
3 : 4 : 5 and its perimeter is 280m. The length of the
longest side is :
किसी चतभुुजु िी चार भजुा ँ 2 : 3 : 4 : 5 िे अनलुात में ह ैऔर
उसिी लररत्रि 280 मी र ह ै सलस ेेम् ली भजुा िी ेम् लाई लता
?
1) 100 m/100 m 2) 150 m
3) 175 m 4) 180 m
Q.5. Kamal has some apples. He sold 40% more than he
ate. If he sold 70 apples, the how many apples did he eat
?
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
िमे िे लास िुट सले ह ै उसन ेत्रजतन ेखा उसस े40% अत्रिि
लचे े यकि उसन े70 सेल लचे ेतो लता िी उसन ेकिसन ेसेल खा
?
1) 18 2) 42
3) 50 4) 90
Q.6. A train 100m long is running at a speed of 120 kms/hr.
The time taken to pass a person standing near the line is
100 मी र ेम् ली ि रेेगाी ी 120 किमी/ा ें िी रफ्तार स ेचे
रही ह ै रेे लथ िे लास खी े ि व् यत्रि िो लार िरन ेमें स ेकितना
समय ेगेगा ?
1) 12 second 2) 3 second
3) 5 second 4) 7 second
Q.7. If 𝒙𝟐 + 𝟓𝒙 + 𝟔 = 𝟎, then the value of 𝟐𝒙
𝒙𝟐−𝟕𝒙 + 𝟔 is :
The Gurukul of Math’s
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Super Session of Math’s 23 Oct. 2019
यकि 𝒙𝟐 + 𝟓𝒙 + 𝟔 = 𝟎, हो तो 𝟐𝒙
𝒙𝟐−𝟕𝒙 + 𝟔 िा मान लता ं ?
1) 1
6 2)
1
3
3) −1
6 4) −
1
3
Q.8. If a + b = 5 and a – b = 3, then the value of (a² + b²) is
यकि a + b = 5 और a – b = 3 हो तो (a² + b²) िा मान लता
?
1) 17 2) 18
3) 19 d) 20
Q.9. A 8 cm long perpendicular is drawn from the center of
a circle to the 12 cm chord. Find the diameter of the
circle.
किसी वतृ्त िे िेन्द र स े12 समेी ेम् ल ेजीवा ति ि 8 समेी ेम् ला
ेम् ल खचचा जाता ह ै वतृ्त िा व् यास ञातात िीत्रज ?
1) 10 cm 2) 12 cm
3) 16 cm 4) 20 cm
Q.10. The point equidistant from the sides of a triangle is
called
The Gurukul of Math’s
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Super Session of Math’s 23 Oct. 2019
त्रिभजु िी भजुाओं स ेसमिरुस् थ त्रलन्द ि ु या िहेात ेह ै?
1) Circumcenter/परिकेन्दर् 2) Incentre/ अतं: िेन्द र
3) Orthocenter/ लम्ब्केन्दर् 4) Centroid / िेन्द रि
Q.11. The value of 𝒄𝒐𝒔𝒆𝒄𝟐𝟔𝟎𝟎 + 𝒔𝒆𝒄𝟐𝟔𝟎𝟔𝟎 − 𝒄𝒐𝒕𝟐𝟔𝟎𝟎 +
𝒕𝒂𝒏𝟐𝟑𝟎𝟎 will be
𝒄𝒐𝒔𝒆𝒄𝟐𝟔𝟎𝟎 + 𝒔𝒆𝒄𝟐𝟔𝟎𝟔𝟎 − 𝒄𝒐𝒕𝟐𝟔𝟎𝟎 +
𝒕𝒂𝒏𝟐𝟑𝟎𝟎 िा मान या होगा ?
1) 5 2) 51
2
3) 51
3 4) 5
2
3
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Q.12. A man buys a table and a chair for Rs. 500. He sells
the table at a loss of 10% and the chair at a gain of 10%.
He still gains Rs. 10 on the whole. The cost price of chair
in rupees is
िोई व् यत्रि ि मजे और ि िुससी ु. 500 में खरीिता ह ै वह मजे
10% िी हात्रन लर और िुससी 10% िे ेाभ लर लचे िेता ह ैकिर भी
उस ेिुे त्रमेािर ु. 10 िा ेाभ होता िुससी िा रयमयम् य ु.लयों में
लता ?
1) ₹ 200 2) ₹ 250
3) ₹ 300 4) ₹ 350
Q.13. The least number that must be added to 8961 to make
is exactly divisible by 84 is
8961 में िौन-सी ेातु्तम सखं् या जोी े कि वह 84 स ेलर््तु: त्रवभाज् य
हो जाए?
1) 27 2) 57
3) 141 4) 107
Q.14. The average age of a class of 39 students is 15 years. If
the age of the teacher is included, then the average
increases by 3 months. Fin d the age of the teacher.
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
39 टािों िी ि िक्षा में औसत आय ु15 वर् ुह ै यकि अध् यालि िी
आय ुभी जोी िी जा तो औसत आय ु3 माह लढ़ जाती ह ै अध् यालि
िी आय ुञातात कीजजए?
1) 30 2) 25
3) 35 4) 40
Q.15. If 𝒙 = 𝒂 +𝟏
𝒂 and 𝒚 = 𝒂 –
𝟏
𝒂, then the value of 𝒙𝟒 +
𝒀𝟒 − 𝟐𝒙𝟐𝒚𝟒 is
यकि 𝒙 = 𝒂 +𝟏
𝒂 और 𝒚 = 𝒂 –
𝟏
𝒂, हो तो 𝒙𝟒 + 𝒀𝟒 − 𝟐𝒙𝟐𝒚𝟒
िा मान ञातात िरें ?
1) 4 2) 8
3) 16 4) 64
The Gurukul of Math’s
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Super Session of Math’s 23 Oct. 2019
Q.16. In ∆ABC and ∆DEF, If ∠A = 50°, ∠B = 70°, ∠C = 60°,
∠D = 60°, ∠E =70° and ∠F = 50° then
∆ABC और ∆DEF, में यकि ∠A = 50°, ∠B = 70°, ∠C = 60°,
∠D = 60°, ∠E =70° और ∠F = 50° हो तो
1) ∆ABC~∆FED 2) ∆ABC~∆DFE
3) ∆ABC~∆EDF 4) ∆ABC~∆DEF
Q.17. In a ∆𝐀𝐁𝐂, if 4∠A =3∠B = 12∠C, find ∠A
∆𝐀𝐁𝐂 में यकि 4∠A =3∠B = 12∠C हो तो ∠A माेम् िरें ?
1) 22.5° 2) 90°
3) 67.5° 4) 112.5°
Q.18. if 𝒔𝒊𝒏𝜽 + 𝒄𝒐𝒔𝒆𝒄𝜽 = 𝟐, the value fo 𝒔𝒊𝒏𝒏𝜽 + 𝒄𝒐𝒔𝒆𝒄𝒏𝜽
is
यकि 𝒔𝒊𝒏𝜽 + 𝒄𝒐𝒔𝒆𝒄𝜽 = 𝟐, हो तो 𝒔𝒊𝒏𝒏𝜽 + 𝒄𝒐𝒔𝒆𝒄𝒏𝜽 िा मान
या होगा ?
1) 2𝑛 2) 21
𝑛
3) 2 4) 0
Q.19. If 𝟐𝒙+𝟒 − 𝟐𝒙+𝟐 = 𝟑 then the value of ‘x’ is
यकि 𝟐𝒙+𝟒 − 𝟐𝒙+𝟐 = 𝟑 हो तो ‘x’ िा मान ञातात िीत्रज ?
The Gurukul of Math’s
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Super Session of Math’s 23 Oct. 2019
1) 0 2) 2
3) -1 4) -2
Q.20. Two persons are on either side of a temple, 75 m high,
observe the angle of elevation of the top of the temple to
be 30° and 60° respectively. The distance between the
persons is :
िो व् यत्रि , ि 75 मी र पँच ेमत्रन्दिर िे त्रवलरीत टोरों लर, ि
सीिी रेखा में खी े ह ैऔर मकंिर िे तीर् ुिा उन्द नयन िोर् िेखत ेह।
जो ि िो 30° और 60° िस्रे िो ्रततीत होता ह ै िोनों व् यत्रि यों
िे लीच कितनी िर्ी ह ै?
1) 173.2 m 2) 100 m
3) 157.7 m 4) 273.2 m
Q.21. If the difference between compound and simple
interest on a certain sum at the rate of 5% per annum
for 2 years is Rs. 20, then the sum is :
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
यकि िोई िन रात्रत 5% वार्र्िु िर लर 2 वर् ुिे त्रे िी जाती ह ै
तो उस लर ेगन ेवाे ेचरयमवतृ्रि ब् याज और सािारर् ब् याज में ₹ 20
िा अन्द तर ह,ै तो लता वह रात्रत या ह ै?
1) ₹ 2000 2) ₹ 4000
3) ₹ 6000 4) ₹ 8000
Q.22. Ratio of A’s age to B’s age is 4 : 3 ‘A’ will be 26 years
old after 6 years. The age of B now is :
A िी आय ुऔर B िी आय ुिा अनलुात 4 : 3 ह ै 6 वर् ुलश् चात A
26 वर् ुिा हो जा गा B िी वतमुान आय ु या ह ै?
1) 9 years 2) 12 years
3) 21 years 4) 15 years
Q.23. If the Arithmetic mean of 7, 85, 13, X and 9 is 10, then
the value of X is :
यकि 7, 5, 13, X तथा 9 िा औसत 10 हो तो X िा मान या
होगा ?
The Gurukul of Math’s
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Super Session of Math’s 23 Oct. 2019
1) 10 2) 12
3) 14 4) 16
Q.24. A man sells an article at 15% profit. If he had sold it
for 6 more, he would have gained 18%. The man
bought the article for
ि व् यत्रि किसी वस् त ुिो 15% ेाभ लर लचेता ह ै यकि उसन े स े
6 अत्रिि लर लचेा होता, तो उस े18% िा ेाभ होता व् यत्रि न ेवह
वस् त ुकितन ेु.लय ेमें खरीिी थी ?
1) 100 2) 150
3) 200 4) 250
Q.25. A’s salary was decreased by 50% and subsequently
increased by 50%. How much percent does he lose ?
A का्वतेन्50% घटा्दिया्गया्औि्बाि्में्50% बढा्दिया्गयाा।्उसे्ककतने्प्रततशत्की्हातन्हुई?
1) 25% 2) 50%
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
3) 6.25% 4) No loss
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Step
1
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Step
2
Step
3
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Step 4
St
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
The Gurukul of Math’s
By Sahil Sir Join Paid Course: Use Referral SAHIL10
Super Session of Math’s 23 Oct. 2019
Solution
1-D 2-D 3-A 4-A 5-C 6-B 7-C 8-A 9-D 10-B
11-C 12-C 13-B 14-B 15-C
16-A 17-C 18-C 19-D 20-A 21-D 22-D 23-D 24-C 25-A