CAT Practice Question and Answer
8Q: The marked price of a Watch is Rs.8400. It is to be sold at Rs.6896 at two successive discounts. If the first discount is 12%, the second discount is ? 2284 05b5cc720e4d2b4197774f627
5b5cc720e4d2b4197774f627- 17.2 %false
- 29.14 %false
- 37.13 %false
- 46.709 %true
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Answer : 4. "6.709 %"
Explanation :
Answer: D) 6.709 % Explanation: (100-x)% of 88% of 8400 = 6896 => 100-x10088100x8400 = 6896 => x = 6.709%
Q: What is Black, when Clean and White, when Dirty? 2284 05b5cc6afe4d2b4197774d254
5b5cc6afe4d2b4197774d254- 1Shoesfalse
- 2Carfalse
- 3Chalkboardtrue
- 4Nonefalse
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Answer : 3. "Chalkboard"
Explanation :
Answer: C) Chalkboard Explanation: It is Blackboard or Chalkboard which is Black when clean, and as you write on it with white chalk it becomes dirty in White color.
Q: Who is the author of the book "Panditharadya Charitham" ? 2284 05b5cc6c0e4d2b4197774dae9
5b5cc6c0e4d2b4197774dae9- 1Tikkanafalse
- 2Ganapathidevafalse
- 3Yerranafalse
- 4Palkuriki Somanathatrue
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Answer : 4. "Palkuriki Somanatha"
Explanation :
Answer: D) Palkuriki Somanatha Explanation:
Q: A number is increased by 20% and then decreased by 20%, the final value of the number is ? 2283 05b5cc75ce4d2b4197774fc39
5b5cc75ce4d2b4197774fc39- 1increase by 2%false
- 2decrease by 3%false
- 3decrease by 4%true
- 4increase by 5%false
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Answer : 3. "decrease by 4%"
Explanation :
Answer: C) decrease by 4% Explanation: Here, x = 20 and y = - 20Therefore, the net % change in value=x + y + xy100 %= 20 + -20 + 20 × -20100% or - 4% Since the sign is negative, there is a decrease in value by 4%.
Q: What is the name of the World's smallest republic which has an area of 21 sq.km.? 2283 05b5cc6a8e4d2b4197774ceb1
5b5cc6a8e4d2b4197774ceb1- 1Palermofalse
- 2Naurutrue
- 3Vatican Cityfalse
- 4Namurfalse
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Answer : 2. "Nauru"
Explanation :
Answer: B) Nauru Explanation:
Q: Derivative of sinx by first principle? 2283 05b5cc6abe4d2b4197774d011
5b5cc6abe4d2b4197774d011- 1-sinxfalse
- 2-cosxfalse
- 3cosxtrue
- 4sinxfalse
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Answer : 3. "cosx"
Explanation :
Answer: C) cosx Explanation: Thus, the derivative of sinx by first principle is cosx.
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Answer :
Explanation :
52 C in a P represents 52 Cards in a Pack. Similar to 12 S of the Z 5 C in an OF
Q: Express 3/8 and 1/10 as a Decimals? 2283 05b5cc6b3e4d2b4197774d437
5b5cc6b3e4d2b4197774d437- 11.375 & 1false
- 20.375 & 1false
- 313.75 & 1.1false
- 40.375 & 0.1true
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Answer : 4. "0.375 & 0.1"
Explanation :
Answer: D) 0.375 & 0.1 Explanation: 3/8 as a Decimal : In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple. Now to make 8 into 1000, we multiply numerator and denominator with 125 => 3 x 1258 x 125 = 3751000 = 0.375 1/10 as a Decimal : 1 divided into 10 parts of each 0.1. Therefore, 3/8 = 0.375 and 1/10 = 0.1 in decimals.