CAT Practice Question and Answer
8Q: Two trains, one from Hyderabd to Bangalore and the other from Bangalore to Hyderabad, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is ? 4136 05b5cc6e0e4d2b4197774eb57
5b5cc6e0e4d2b4197774eb57- 13 : 4false
- 24 : 3true
- 32 : 3false
- 43 : 2false
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Answer : 2. "4 : 3"
Explanation :
Answer: B) 4 : 3 Explanation: Let us name the trains as A and B. Then, (A's speed) : (B's speed) = √b : √a = √16 : √9 = 4:3
Q: Which is the World's Fastest SUPERCOMPUTER and to which country it belongs ? 4133 25b5cc6c5e4d2b4197774dd5f
5b5cc6c5e4d2b4197774dd5f- 1JAGUAR --- ENGLANDfalse
- 2PARAM YUVA 2 --- INDIAfalse
- 3CRAY-1 --- ENGLANDfalse
- 4TIANHE 2 --- CHINAtrue
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Answer : 4. "TIANHE 2 --- CHINA"
Explanation :
Answer: D) TIANHE 2 --- CHINA Explanation:
Q: National Highway No: _____ is called as Shershah Suri Marg ? 4130 05b5cc6c5e4d2b4197774dd00
5b5cc6c5e4d2b4197774dd00- 1NH-1true
- 2NH-3false
- 3NH-7false
- 4NH-5false
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Answer : 1. "NH-1"
Explanation :
Answer: A) NH-1 Explanation: N.H. 1 is also called The Sher Shah Suri Marg between Delhi and Amritsar.
Q: Two men A and B start from place X walking at 4 ½ kmph and 5 ¾ kmph respectively. How many km apart they are at the end of 3 ½ hours if they are walking in the same direction ? 4129 05b5cc6eee4d2b4197774ef11
5b5cc6eee4d2b4197774ef11- 12 9/7 kmfalse
- 23 7/5 kmfalse
- 31 3/4 kmfalse
- 44 3/8 kmtrue
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Answer : 4. "4 3/8 km"
Explanation :
Answer: D) 4 3/8 km Explanation: Relative Speed = 5 ¾ - 4 ½ = 1 ¼ Time = 3 ½ h. Distance = 5/4 x 7/2 = 35/8 = 4 3/8 km.
Q: The average age of a class is 19 years. While the average age of girls is 18 and that of boys is 21. If the number of girls in the class is 16, Find the number of Boys in the class? 4118 05b5cc6bce4d2b4197774d8a2
5b5cc6bce4d2b4197774d8a2- 112false
- 210false
- 38true
- 46false
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Answer : 3. "8"
Explanation :
Answer: C) 8 Explanation: Let the number of boys = x From the given data, => [21x + 16(18)]/(x+16) = 19 => 21x - 19x = 19(16) - 16(18) => 2x = 16 => x = 8 Therefore, the number of boys in the class = 8.
Q: An accurate clock shows 7 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 3 o'clock in the afternoon? 4115 05b5cc77ae4d2b41977750138
5b5cc77ae4d2b41977750138- 1144ºfalse
- 2168ºfalse
- 3180ºtrue
- 4150ºfalse
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Answer : 3. "180º"
Explanation :
Answer: C) 180º Explanation: Angle traced by the hour hand in 6 hours =360o12×6 = 180o.
Q: Find the number of factors of 9321 ? 4112 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: The longest ship canal in the world is the 4101 05b5cc69fe4d2b4197774c9fb
5b5cc69fe4d2b4197774c9fb- 1Suez canal, Egyptfalse
- 2Kiel canal, Germanyfalse
- 3Panama canal, Central Americafalse
- 4St. Laurence Seaway (USA and Canada)true
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Answer : 4. "St. Laurence Seaway (USA and Canada)"
Explanation :
Answer: D) St. Laurence Seaway (USA and Canada) Explanation: