IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Anu's present age is 9 years more than that of what Raj's age will be after five years. Raj's present age is seven years more than that of what Renu's age was 4 years ago. Renu's present age is 19 years. What will be Anu's age after 5 years ? 1476 05b5cc6cae4d2b4197774dfd4
5b5cc6cae4d2b4197774dfd4- 139 yrsfalse
- 236 yrsfalse
- 346 yrsfalse
- 441 yrstrue
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उत्तर : 4. "41 yrs"
व्याख्या :
Answer: D) 41 yrs Explanation: Anu = (Raj + 5) + 9 = Raj + 14 -------- (I) Raj = (Renu - 4) + 7 = Renu + 3 ------- (II) Raj's age = 19 + 3 = 22 years After 5 years Anu's age = 22 + 14 + 5 = 41 years
प्र: For which Novel Prominent Konkani writer Mahabaleshwar Sail will be awarded the Saraswati Samman for the year 2016 ? 1341 05b5cc6cae4d2b4197774dfc5
5b5cc6cae4d2b4197774dfc5- 1Hawthantrue
- 2Mandrafalse
- 3Chitt-Chetefalse
- 4None of the abovefalse
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उत्तर : 1. "Hawthan"
व्याख्या :
Answer: A) Hawthan Explanation:
प्र: Complete the number series given below ? 13 19 37 ? 141 243 7560 05b5cc6cae4d2b4197774dfca
5b5cc6cae4d2b4197774dfca- 158false
- 267false
- 375true
- 496false
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उत्तर : 3. "75"
व्याख्या :
Answer: C) 75 Explanation: The given series follows the pattern that So the missing number is 37 + 38 = 75 75 + 66 = 141 ....
प्र: What will come in place of the question mark (?) in the following number series? 5, 7, ?, 25, 45, 75 1534 05b5cc6cae4d2b4197774dfc0
5b5cc6cae4d2b4197774dfc0- 111false
- 213true
- 315false
- 419false
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उत्तर : 2. "13"
व्याख्या :
Answer: B) 13 Explanation: The series given follow the pattern +2, +2+4, +2+4+6, +2+4+6+8, +2+4+6+8+10,... Here ? = 7 + 2 + 4 = 13.
प्र: In a mixture, the ratio of juice and water is 4 : 3. By adding 6 litre water the ratio of juice and water will be 8 : 7. What is the amount of juice in the original mixture ? 1156 05b5cc6c9e4d2b4197774dfbb
5b5cc6c9e4d2b4197774dfbb- 138 litfalse
- 296 litfalse
- 348 littrue
- 452 litfalse
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उत्तर : 3. "48 lit"
व्याख्या :
Answer: C) 48 lit Explanation: Let the amount of juice and water in original mixture '4x' litre and '3x' litre respectively. According to given data, 4x/3x+6 =8/7 28x=24x+48 28x–24x=48 4x = 48 x = 12 Amount of juice = 4x = 4×12 = 48 litre.
प्र: Solve the Number Puzzle ? 1302 05b5cc6c9e4d2b4197774dfb6
5b5cc6c9e4d2b4197774dfb6- 120false
- 224false
- 326true
- 430false
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उत्तर : 3. "26"
व्याख्या :
Answer: C) 26 Explanation: Here the puzzle follows the logic that Right side number = sum of the number on the left side and the previous number on the left side => 6 = 4+2 => 10 = 6+4 => ? = 16+10 = 26.
प्र: On selling 17 balls at Rs.720 there is a loss equal to the cost price of 5 balls. Then what is the cost price of a ball is ? 1194 05b5cc6c9e4d2b4197774dfb0
5b5cc6c9e4d2b4197774dfb0- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
From given data, (C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls) C.P. of 12 balls = S.P. of 17 balls = Rs.720. Hence, C.P. of 1 ball = Rs.720/12 = Rs. 60.
प्र: At an examination in which maximum marks are 500. K got 10% less than L, L got 25% more than M and M got 20% less than N. If K got 360 marks what percentage of marks was obtained by N ? 1560 05b5cc6c9e4d2b4197774dfab
5b5cc6c9e4d2b4197774dfab- 180true
- 287false
- 378false
- 476false
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उत्तर : 1. "80"
व्याख्या :
Answer: A) 80 Explanation: Let marks obtained by N = x M's marks = 0.80x L's marks = 1.25 (0.80x) K's marks = (0.90) (1.25) (0.80x) = 0.9x But 0.9x = 360 ⇒ x = 400 Percentage of Marks obtained by N = 400 x 100/500 = 80%