Logo

Class 10 Compulsory Mathematicsकक्षा १० अनिवार्य गणित — SEE notes & solutions

class 10see

Class 10 SEE Compulsory Mathematics Question Paper 2080 (SEE) – Solved

NEB

2080

Class 10 (SEE)

Compulsory Mathematics

Full Marks: 75

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Section A"

दिइएका निर्देशनका आधारमा आफ्नै शैलीमा सिर्जनात्मक उत्तर दिनुहोस् : सबै प्रश्नहरु अनिवार्य छन् । (Answer all the questions.)

[]

1.

एउटा सर्वेक्षणमा सहभागी भएका मानिसहरूमध्ये 80 जना मानिसहरूले सुन्तला मन पराउने र 85 जना मानिसहरूले आँप मन पराउने र 75 जना मानिसहरूले दुवै मन पराउने जानकारी दिंदा 50 जना मानिसहरूले यीमध्ये कुनै पनि फलफूल मन पराएनन् ।

Out of the people who participated in a survey, 80 people liked oranges, 85 people liked mangoes and 75 people liked both, while 50 people did not like any of these fruits.

a) सुन्तला मन पराउने मानिसहरूको समूहलाई O र आँप मन पराउने मानिसहरूको समूहलाई M मानी दुवै फलफूल मन पराउने मानिसहरूको समूहलाई गणनात्मक संकेतमा लेख्नुहोस् ।

Assuming the set of people who like oranges as O and mangoes as M, write the set of people who like both fruits in the cardinality notation.

b) माथिको तथ्यलाई भेन चित्रमा प्रस्तुत गर्नुहोस् ।

Present the above information in a Venn diagram.

c) भेन चित्रको प्रयोग गरी सर्वेक्षण गरिएको जम्मा मानिसहरूको संख्या पत्ता लगाउनुहोस् ।

Find the total number of people who participated in the survey by using Venn diagram.

d) एउटा मात्र फलफूल मन पराउने मानिसहरूको संख्या र दुवै फलफूल मन पराउने मानिसहरूको संख्या तुलना गर्नुहोस् ।

Compare the number of people who like only one fruit and the number of people who like both the fruits.

[1 + 1 + 3 + 1]
3.

रामपुरको सुरुको जनसंख्या 2,40,000 र लक्ष्मणपुरको सुरुको जनसंख्या 2,30,000 थियो । रामपुरको जनसंख्या प्रतिवर्ष 4% का दरले बढ्दै जान्छ र लक्ष्मणपुरको जनसंख्या प्रतिवर्ष 5% का दरले घट्दै जान्छ ।

The initial population of Rampur was 2,40,000 and that of Laxmanpur was 2,30,000. The population of Rampur increases by 4% per year and the population of Laxmanpur decreases by 5% per year.

a) T वर्षपछिको जनसङ्ख्या निकाल्ने सूत्र लेख्नुहोस् ।

Write the formula for finding population after T years.

b) 2 वर्षपछि कुन स्थानको जनसंख्या कतिले बढी हुन्छ ? पत्ता लगाउनुहोस् ।

After 2 years which place has more population and by how much? Find it.

c) रामपुरको सुरुको जनसंख्या जति लक्ष्मणपुरको जनसंख्या पुग्नका लागि 2 वर्षमा त्यहाँको जनसंख्या कति प्रतिशतले बढ्नुपर्छ ? पत्ता लगाउनुहोस् ।

By what percentage should the population of Laxmanpur increase in 2 years to reach the same population as the initial population of Rampur? Find it.

[1 + 2 + 1]
6.

चित्रमा देखाइएको ठोस वस्तु वर्ग आधार भएको पडमुखा र पिरामिड मिली बनेको छ । जहाँ, आधार भुजाको लम्बाई 12 से.मि., पडमुखाको उचाई 9 से.मि र पिरामिडको छड्के उचाई 10 से.मि छ ।

The solid object shown in the picture is made up of cuboid and pyramid with a square base. Where, the length of the base side is 12 cm, height of the cuboid is 9 cm and slant height of the pyramid is 10 cm.

[Figure: Solid object made of cuboid and square-based pyramid, base side 12 cm, cuboid height 9 cm, slant height 10 cm]

a) वर्ग आधार भएको पिरामिडको छड्के उचाई र आधार भुजा दिइएको अवस्थामा ठाडो उचाई कसरी पत्ता लगाइन्छ ? लेख्नुहोस् ।

How do you find the vertical height of the square based pyramid when slant height and length of the base are given? Write it.

b) उक्त पिरामिडको आयतन पत्ता लगाउनुहोस् । Find the volume of the pyramid.

c) उक्त पिरामिडको आयतन पडमुखाको आयतनभन्दा कतिले कम वा बढी छ ? तुलना गर्नुहोस् ।

How much is the volume of the pyramid less or more than the volume of the cuboid? Compare it.

[1 + 1 + 1]
7.

चित्रमा देखाइएजस्तै एउटा इनार बनाउन 91 से.मि.भित्री व्यास तथा 30 से.मि उचाइ भएका 30 ओटा सिमेन्टबाट बनेका चक्काहरू राखिएका छन् । उक्त इनार बनाउन 3 जना कामदारहरूलाई 7 दिन लाग्छ । एउटा चक्काको मूल्य रु. 900 र प्रति कामदारको दैनिक ज्याला रु. 1500 छ ।

As shown in the picture, 30 rings made of cement with internal diameter of 91 cm and height of 30 cm each are placed to make a well. 3 workers can build the well in 7 days. The cost of one ring is Rs. 900 and the daily wage per worker is Rs. 1500.

[Figure: A cylindrical well made of 30 cement rings, internal diameter 91 cm, height 30 cm each]

a) इनार बनाउन जम्मा कति खर्च लाग्छ ? पत्ता लगाउनुहोस् ।

How much does it cost to build a well? Find it.

b) उक्त इनारमा अधिकतम कति लिटर पानी अटाउँछ? पत्ता लगाउनुहोस् ।

How many maximum liters of water can be stored in the well? Find it.

c) यदि उक्त इनारमा 4000 लिटर पानी रहेछ भने कति ओटा पूर्ण चक्का पानीमुनि छन् ? पत्ता लगाउनुहोस् ।

If there is 4000 liter of water in that well, how many rings are completely under the water level? Find it.

[2 + 2 + 2]
8.

एक कर्मचारीले आफ्नो तलबको निश्चित रकम एउटा सहकारीमा समानान्तरीय अनुक्रममा जम्मा गर्ने निर्णय गरे । सोहीवमोजिम पहिलो महिना रु. 6000, दोस्रो महिना रु. 6100, तेस्रो महिना रु. 6200 गरी एवम्रीतले रकम जम्मा गरेछन् ।

A civil servant decided to deposit certain amount of his salary in a cooperative in the arithmetic sequence. He deposited Rs 6000 in the first month, Rs 6100 in the second month, Rs 6200 in the third month and so on.

a) समानान्तरीय अनुक्रममा रहेका पदहरूको योगफल पत्ता लगाउने सूत्र लेख्नुहोस् ।

Write the formula to find the sum of the terms of an arithmetic sequence.

b) उनले एक वर्षभित्र जम्मा कति रकम सहकारीमा बचत पार्छन् ? पत्ता लगाउनुहोस् ।

How much amount does he save within a year in the cooperative? Find it.

c) उनलाई रु. 64,500 जम्मा गर्न कति महिना लाग्छ ? गणना गर्नुहोस् ।

How many months will he take to deposit Rs 64,500? Calculate it.

[1 + 2 + 3]
16.

एउटा भोलामा उस्तै र उत्रै 2 वटा राता र 4 वटा सेता बलहरू छन् । दुइओटा बलहरू एकपछि अर्को गरी पुन: नराखीकन फिकिएका छन् ।

There are 2 red and 4 white balls of the same shape and size in a bag. Two balls are drawn randomly one after another without replacement.

a) अनाश्रित घटनाहरू भनेको के हो ? लेख्नुहोस् ।

What is the independent events? Write it.

b) सबै सम्भावित परिणामहरूको सम्भाव्यतालाई वृक्षचित्रमा देखाउनुहोस् ।

Show the probability of all the possible outcomes in a tree diagram.

c) दुवै वल रातो पर्ने सम्भाव्यता कति हुन्छ ? पत्ता लगाउनुहोस् ।

What is the probability of getting both red balls? Find it.

d) दुवै वल फरक रङका पर्ने सम्भाव्यता दुवै वल रातो रङका पर्ने सम्भाव्यता भन्दा कति कम वा बढी हुन्छ ? पत्ता लगाउनुहोस् ।

How much the probability of getting both balls of different color is less or more than the probability of getting both balls of red color? Find it.

[1 + 2 + 2 + 1]