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Q1. What is the value of cos 00+ cos 10 + ……….+ cos1800 ?
- 2 (B) 1 (C) 0 (D) -1
Q.2 If
?यदि
है तो मान 
क्या होगा?(A) 1 (B) 2 (C) -1 (D) 0
Sol
Q.3. The difference between the compound interest and simple interest of a certain sum of amount is rupees 256.40 for 4 years at 10% rate per annum. Find the sum of money?
किसी धन पर 10 % वार्षिक दर से 4 वर्ष के चकर्वृद्धि तथा साधारण ब्याज का अंतर रु 256.40 है तो मूलधन क्या है?
(A) 4000 (B) 4500 (C) 40000 (D) 6000
Sol :
% Difference between CI and SI = 46.41-40=6.41
Q.4. A bag contain 25 paisa, 10 paisa and 5 paisa coin are in the ratio 2 : 3 : 5. If the amount in the bag is Rs. 105 find the number of coins of 5 paisa?
एक बैग में 25 पैसे , 10 पैसे एवं 5 पैसे के सिक्के 2 : 3 : 5 के अनुपात में है यदि थेले में कुल 105 रु है तो 5 पैसे के सिक्को की संख्या क्या होगी ?
(A) 50 (B) 200 (C) 300 (D) 500
Sol :
According to question,
So number of coins of 5 paisa = 5
= 500Q.5. 55000 is divided among A, B and C in such a way that B gets 2.5 times of A, and one-third of C. Then find the share of B?
55000 रु. को A , B और C में इस तरह से विभाजित किया जाता है B को A का 2.5 गुना तथा C का एक तिहाई भाग मिलता है, तो B का भाग होगा ?
(A) 12,500 (B) 10,000 (C) 13,000 (D) 25,000
Sol:
Let the share of A be x.
B’s share is = 2.5x
And C’s share is = 7.5x
So according to question,
So B’s share is 2.5
= 12500Q.6.Ram is 30 years younger to his uncle at present. Five years ago , ram age is one- fourth of his uncle age , find Ram’s uncle age after 5 years ?
राम आज अपने चाचा से 30 वर्ष छोटा है। पांच वर्ष पहले राम की आयु उसके चाचा से एक -चौथाई थी। आज से 5 वर्ष बाद राम के चाचा की आयु कितनी होगी ?
(A) 60 years (B) 45 years (C) 50 years (D) none of these
Sol :
Let present age of ram be x.
So Ram’s uncle age is =
5 year ago,
Ram age is
.Ram’s uncle age is
.According to question,
Q.7.The average age of 20 boys is 14 years. A boy who is 16 years old left them and one new boy replace him. Then the average become 13.8 years. Find the age of new boy?
20 लड़को की औसत आयु 14 वर्ष है 16 वर्ष का एक नया लड़का उन्हें छोड़कर चला जाता है और नया लड़का उसके स्थान पर आ जाता है यदि अब उनकी औसत आयु 13.8 वर्ष हो तो नए लड़के की आयु कितनी है ?
(A)13 years (B) 12 years (C) 11 years (D) 15 years
Sol
Let the age of new boy be x.
So required age is,
on solving it we get x = 12
so the age of new boy will be 12 years
Q.8. A man eats 98 chapattis of diameter 6 inches. Then how many chapattis he can be eaten having a diameter of 42 inches?
एक व्यक्ति 6 इंच व्यास की 98 रोटी खा लेता है वह 42 इंच की कितनी रोटी खा लेगा?
(A)14 (B) 4 (C) 6 (D) 2
Sol :
Required number =
Q.9. Sachin is younger than Rahul by 4 years. It their ages are in the ratio 7 : 9. then how old is sachin?
सचिन राहुल से 4 वर्ष छोटा है, यदि उनकी आयु का अनुपात 7 : 9 है तो सचिन की आयु ज्ञात कीजिये?
(A) 14 years (B) 18 years (C) 25 years (D) 21 years
Sol :
Let the age of sachin be x years.
Rahul age will be = x + 4 years.
According to question,
Q. 10. The marked price of an article is 30% higher than the cost price. If a trader sells the articles allowing 10% discount to the customer, then the gain percent will be:
किसी वस्तु की औसत कीमत उसके क्रय मूल्य से 30% अधिक है | यदि कोई व्यापारी उसे 10% की छूट दे कर बेचे तो उसका लाभ प्रतिशत बताइए ?
(A)17 (B) 19 (C) 20 (D) 15
Sol:
Answer Key :
Q1. C
Q2. D
Q3. A
Q4. D
Q5. A
Q6. C
Q7. B
Q8. D
Q9. A
Q10. A
