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का सरलीकृत मान क्या है ? (A) 44 (B) 32 (C) 100 (D) 24
Sol:
We know that,
Q.2. What is the unit digit
?
का इकाई अंक क्या है ? (A) 4 (B) 0 (C) 6 (D) 5
Sol:
Required unit digit is
Unit digit of
is 5.Unit digit of
is 9.Unit digit of
is 2.So unit digit will be 5 + 9 + 2 = 6.
Q.3.If
then find the value of
यदि
तो इसका मान क्या होगा 
(A) 3m (B) 4m (C)
(D) 
Sol :
Required ans will be 4m.
Q.4. Find the average of all prime number between 1 to 20?
1 और 20 के बीच सभी अभाज्य संख्याओ का औसत क्या है?
(A) 9.625 (B) 9.75 (C) 8.66 (D) 10.625
Sol:
Prime numbers between 1 to 20 are 2, 3, 5, 7, 11, 13, 17 and 19.
So required average is =
Q.5.The speed of first train is 45km/hr. and the speed of another train is 10m/sec. find the ratio of their speed?
एक रेलगाड़ी की चाल 45 किमी/घंटा है और दूसरी रेलगाड़ी की चाल 10 मीटर/सेकंड है दोनों गाडी की चाल का अनुपात ज्ञात कीजिये?
(A) 5 : 4 (B) 2 : 3 (C) 9 : 2 (D) 4 : 3
Sol :
The speeds of the trains are
Q.6. A merchant sells a radio at 10 % profit if he bought 10% less and sold it Rs.132 less then he got 10% profit. Find the cost price of radio?
एक व्यापारी एक रेडियो को 10% के लाभ पर बेचता है यदि उसने वह 10% कम पर ख़रीदा होता और रु. 132 कम में बेचा होता, तो उसे 10% लाभ मिलता. रेडियो का क्रय मूल्य क्या है ?
(A) 1100 (B) 1200 (C) 1300 (D) 1320
Sol ;
Let the cost price of radio be 100x.
So selling price will be = 110x.
According to question,
CP = 90x , SP = 110x – 132.
So the cost price of radio is 1200.
Q.7.A shopkeeper marked the article 30 % above the cost price. And he gives a discount of 20 % on the M.R.P. find his profit percentage?
एक दुकानदार एक वस्तु पर लागत कीमत से 30% अधिक अंकित करता है यदि वह अंकित मूल्य पर 20% छूट देता है, तो उसका लाभ प्रतिशत क्या है?
(A) 15 (B) 10 (C) 6 (D) 4
Sol :
Let the cost price be 100.
So M.R.P will be 130.
Discount = 20%
So selling price will be = 104
Required profit = 4
Profit percentage =
Q.8. The ratio of the volume of two right circular cylinder is 2 : 3. And the ratio of their radius is 1 : 2. Find the ratio of their heights?
यदि दो लम्ब वृतीय शंकुओ के आयतन का अनुपात 2 : 3 है और उनके आधार की त्रिज्याओ का अनुपात 1 : 2 है तो उनकी ऊंचाईयों का अनुपात क्या है?
(A) 3 : 4 (B) 8 : 3 (C) 4 : 3 (D) 3 : 8
Sol :
According to question,
Q.9 The length, breadth and height of a room are in the ratio 3 : 2 : 1 if the volume of the room is 1296 metre3. Then find the breadth of the room?
एक कमरे की लम्बाई , चौड़ाई तथा ऊंचाई का अनुपात 3 : 2 : 1 है यदि कमरे का आयतन 1296 मीटर3. है तो उसकी चौड़ाई क्या है?
(A) 12 metre (B) 18 metre (C) 16 metre (D) 24 metre
Sol :
Volume = l x b x h
So breadth of room = 12 metre
Q.10. If
then find the value of 
?यदि
तो 
का मान क्या है? (A) 0 (B) ½ (C) 1 (D)
Sol :
Answers:
Q.1 (C)
Q.2 (C)
Q.3 (B)
Q.4 (A)
Q.5 (A)
Q.6 (B)
Q.7 (D)
Q.8 (B)
Q.9 (A)
Q.10 (B)
