1. What approximate value will come in place of the question mark (?) in the following questions?
निम्नलिखित प्रश्नों में प्रश्नचिन्ह (?) के स्थान पर लगभग क्या मान आयेगा?
98.734 - 3.21 = -58.31
2. 28600
3. 29600
4. 23700
5. 24400
SOL :
99 - 3 = -58
= 154
? = 23716
≈ 23700
3. What approximate value will come in place of the question mark (?) in the following questions?
निम्नलिखित प्रश्नों में प्रश्नचिन्ह (?) के स्थान पर लगभग क्या मान आयेगा?
77.65 × 981.73 = 8478.73 - 4241.68 + ?
1. 72360
2. 84360
3. 54360
4. 73260
5. 94360
SOL : 78 × 982 = 8479 - 4242 + ?
76596 = 4237 + ?
? = 72359
≈ 72360
4. What will come in place of question mark (?) in the following number series ?
निम्न संख्या श्रृंखलाओं में प्रश्नवाचक चिह्न (?) के स्थान पर क्या आयेगा ?
9 13 22 38 63 ?
- 99
- 102
- 107
- 98
- None of these
+22, +32, +42, +52, +62 ...........
5. What will come in place of question mark (?) in the following number series ?
- 344
- 364
- 354
- 384
- 324
×2+10, ×2+20, ×2+30.........
6. What will come in place of question mark (?) in the following number series ?
27 148 292 461 ? 882
- 651
- 641
- 657
- 666
- None of these
+112, +122, +132...........
7. A basket contains 6 blue 2 red 4 green and 3 yellow balls. If 4 balls are picked at random, what is the probability that 2 are red and 2 are green?
- 4/15
- 5/57
- 1/3
- 2/455
- 6/455
- 8800
- 13900
- 12600
- Data inadequate
- None of these
9. The compound interest on a certain sum of money at after 2 years is Rs. 585. Find the simple interest on the same sum of money at the same rate after 3 years.
किसी निश्चित धन पर की दर से 2 वर्षों का चक्रवृद्धि ब्याज रु.585 है. समान धन पर समान ब्याज की दर से 3 वर्षो का साधारण ब्याज ज्ञात कीजिये.
- 108
- 208
- 810
- 800
- 900
So compound interest will @ for 2 years is 13%
So 13% = 285
Simple interest on the same amount for 3 years is 18
18% =
10. Milk and water are mixed in a vessel A as 4:1 and in vessel B as 3:2. For vessel C, if one takes equal quantities from A and B, find the ratio of milk to water in C.
दूध तथा पानी को बर्तन A में 4:1 के अनुपात में और बर्तन B में 3:2 के अनुपात में मिलाया गया. यदि बर्तन A और बर्तन B से सामान मात्रा में मिश्रण एक बर्तन C में लिया जाय तो उसमे दूध तथा पानी का अनुपात ज्ञात कीजिये.
- 3 : 7
- 7 : 3
- 10 : 7
- 7 : 10
- 1 : 1
51.5
52.5
53.5
54.5
55
Sol :
total weight 40 students=55×40=2200kg
total weight of 6 students who left the class =6×52=312kg
total weight of 6 students who joined the class =6×42=252kg
new weight of 40 students = 2200-312+252
=2140
hence required average=2140/40=53.5 kg
0 comments:
Post a Comment
MAHENDRA GURU