GATE Practice Question and Answer
8Q: 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 ? 1680 05b5cc6cae4d2b4197774dfd4
5b5cc6cae4d2b4197774dfd4- 139 yrsfalse
- 236 yrsfalse
- 346 yrsfalse
- 441 yrstrue
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Answer : 4. "41 yrs"
Explanation :
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
Q: Assuming the given statements to be true, find which of the two conclusions A and B given below is/are definitely true. Statements: C < T < L= P > Q, N > C > Y Conclusions: A. P > Y B. Y < P 1680 05b5cc6cbe4d2b4197774e0c2
5b5cc6cbe4d2b4197774e0c2- 1only conclusion B is true.true
- 2only conclusion A is true.false
- 3neither conclusion I nor II is true.false
- 4either conclusion I or II is true.false
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Answer : 1. "only conclusion B is true."
Explanation :
Answer: A) only conclusion B is true. Explanation: From given statements, we can conclude that N > C < T < L= P > Q .....(1) Here given that C > Y but in eq(1) we got that C < T < T <= P => Y is definitely less than P. So only conclusion B is True.
Q: What is 85 of 352? 1680 05b5cc6a6e4d2b4197774cd42
5b5cc6a6e4d2b4197774cd42- 121.5%false
- 224.14%true
- 323.68%false
- 425.47%false
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Answer : 2. "24.14%"
Explanation :
Answer: B) 24.14% Explanation: Here 85 of 352 => 85 is what percent in 352 Let p% of 352 is 85 Percentage(%) is generally calculated in the total of 100. => p x 352/100 = 85 => p = 8500/352 = 24.14% Hence, 85 is 24.14% of 352.
Q: What is 70 of 50? 1678 05b5cc675e4d2b4197774c13e
5b5cc675e4d2b4197774c13e- 135true
- 238false
- 342false
- 444false
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Answer : 1. "35"
Explanation :
Answer: A) 35 Explanation: what is 70 of 50 means 70% of 50 ⇒70 x 50100= 7 x 5= 35 Hence, 70 of 50 is 35.
Q: 100 percent of which number is 20? 1678 05b5cc6b0e4d2b4197774d28d
5b5cc6b0e4d2b4197774d28d- 1100false
- 2500false
- 320true
- 40false
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Answer : 3. "20"
Explanation :
Answer: C) 20 Explanation: Let the rquired number be 'P' According to the question, 100 x P100 = 20=> P = 20 x 100100 = 20 Hence, 100 percent of the number 20 is 20. Now, you can also try for 20 percent of what number is 100 20 x P100 = 100=> P = 100 x 10020 = 500=> P = 500 Hence, 20 percent of the number 500 is 100.
Q: Is steel a compound? 1676 05b5cc62ae4d2b4197774b8b5
5b5cc62ae4d2b4197774b8b5- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: Steel is not a compound or element. Steel is an alloy of iron and carbon and other elements and hence it is a mixture. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons.
Q: What should be replaced in the place of '?' in the following series ? JAK, KBL, LCM, MDN, ? 1675 05b5cc764e4d2b4197774fd9e
5b5cc764e4d2b4197774fd9e- 1MENfalse
- 2NEMfalse
- 3NEOtrue
- 4OEPfalse
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Answer : 3. "NEO"
Explanation :
Answer: C) NEO Explanation: This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.
Q: What is the chemical name for vitamin A? 1675 05b5cc645e4d2b4197774bb95
5b5cc645e4d2b4197774bb95- 1Retinoltrue
- 2Riboflavinfalse
- 3Thiaminefalse
- 4Niacinfalse
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Answer : 1. "Retinol"
Explanation :
Answer: A) Retinol Explanation: Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, retinoic acid, and several provitamin A carotenoids. IUPAC Name :: (2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraen-1-ol Vitamin Name - Chemical Name Vitamin A - Retinol Vitamin B1 - Thiamine Vitamin B2 - Riboflavin Vitamin B3 - Niacin Vitamin B5 - Pantothenic acid Vitamin B6 - Pyridoxin Vitamin B7 - Biotin Vitamin B9 - Folic acid Vitamin B12 - Cyanocobalamin Vitamin C - Ascorbic acid Vitamin D - Calciferol Vitamin E - Tocoferol Vitamin K - Phylloquinone and Menaquinones

