IIT JEE Practice Question and Answer
8Q: Ajay who is a King, at his eleventh hour, called his three queens and distributed his gold in the following way: He gave 50% of his wealth to his first wife, 50% of the rest to his second wife and again 50% of the rest to his third wife. If their combined share is worth1,30,900 kilograms of gold, find the quantity of gold King Ajay was having initially? 3128 05b5cc6a6e4d2b4197774cd8c
5b5cc6a6e4d2b4197774cd8c- 1153145 kgsfalse
- 2147890 kgsfalse
- 3152400 kgsfalse
- 4149600 kgstrue
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Answer : 4. "149600 kgs"
Explanation :
Answer: D) 149600 kgs Explanation: Let the total quantity of gold be p kgs. According to the question, 50% of p + 25% of p + 12.5% of p = 130900 87.5% of p = 130900 p = 130900 x 100/87.5 = 149600 kgs. Therefore, the initial gold quantity that king has = p = 149600 kgs.
Q: What is the value of P in the following Equation ? 192.5 × 19p = 197 3125 15b5cc6bee4d2b4197774d9a6
5b5cc6bee4d2b4197774d9a6- 13.9false
- 24.1false
- 33.7false
- 44.5true
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Answer : 4. "4.5"
Explanation :
Answer: D) 4.5 Explanation: Given equation is 192.5 ×19p = 197 Here it is in the form of am × an = am+n Here m = 2.5 , n = p, m+n = 7 => 2.5 + p = 7 => p = 7 - 2.5 => p = 4.5
Q: Emergence of two power blocs after the second world war. What are they? 3123 05b5cc68ee4d2b4197774c3fa
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Answer :
Explanation :
Emergence of two great power blocs: Two power blocs came into existence after the Second World War. The United States of America and Soviet Russia became two Super Powers. They tried to dominate over other countries in their own way. Ultimately, it gave a headache to the world. The Cold War was a state of political and military tension after World War II between powers in the Western Bloc (the United States, its NATO allies and others) and powers in the Eastern Bloc (the Soviet Union and its allies in the Warsaw Pact).
Q: Find the number of factors of 9321 ? 3122 05b5cc736e4d2b4197774f832
5b5cc736e4d2b4197774f832- 14false
- 25false
- 37false
- 48true
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Answer : 4. "8"
Explanation :
Answer: D) 8 Explanation: 9321 = 3 x 13 x 239 = 31 x 13 1 x 239 1 ; add one to all the powers ie., (1+1) x (1+1) x (1+1)= 8 ; we get eight factors.
Q: Study of the sun is called 3120 05b5cc6a2e4d2b4197774cb60
5b5cc6a2e4d2b4197774cb60- 1Coronagraphyfalse
- 2Seismographyfalse
- 3Helioseismologytrue
- 4Heliographyfalse
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Answer : 3. "Helioseismology"
Explanation :
Answer: C) Helioseismology Explanation: Helioseismology is the study of the solar interior using observations of waves on the Sun's surface. It has done much to improve our understanding of the interior of the Sun, testing the physical inputs used to model stellar interiors and providing a detailed map of the Sun's structure and internal rotation.
Q: In a queue, Amrita is 10th from the front while Mukul is 25th from behind and Mamta is just in the middle of the two. If there be 50 persons in the queue. What position does Mamta occupy from the front ? 3120 05b5cc6f8e4d2b4197774f068
5b5cc6f8e4d2b4197774f068- 114thfalse
- 216thfalse
- 318thtrue
- 420thfalse
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Answer : 3. "18th"
Explanation :
Answer: C) 18th Explanation: Number of persons between Amrita and Mukul = 50 - (10 + 25) = 15. Since Mamta lies in middle of these 15 persons, so Mamta`s position is 8th from Amrita i.e. 18th from the front.
Q: A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings ? 3115 05b5cc6e9e4d2b4197774ee01
5b5cc6e9e4d2b4197774ee01- 134false
- 236false
- 335false
- 437true
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Answer : 4. "37"
Explanation :
Answer: D) 37 Explanation: 16x + 85 = 17(x + 3) x = 34 + 3 = 37
Q: Which Payments Bank becoming the first bank to offer cash backs on deposits ? 3114 05b5cc6dbe4d2b4197774e922
5b5cc6dbe4d2b4197774e922- 1Postal Payments Bankfalse
- 2Airtel Payments Bankfalse
- 3Aditya Birla Payments Bankfalse
- 4Paytm Payments Banktrue
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Answer : 4. "Paytm Payments Bank"
Explanation :
Answer: D) Paytm Payments Bank Explanation: Paytm Payments Bank becoming the first bank to offer cash backs on deposits. Customers will also be offered zero charges on all online transactions and no minimum balance requirement. The Payments Bank plans to roll out 31 branches and 3,000 customer service points in the first year. For savings accounts, it will offer an interest of 4 percent per annum. It will also offer current accounts to its millions of merchants.