IIT JEE Practice Question and Answer
8Q: The Budget proposals also seek to provide relief to salaried tax payers by allowing a standard deduction of what amount in place of the present exemption allowed for transport allowance and reimbursement of miscellaneous medical expenses? 1661 05b5cc688e4d2b4197774c2f5
5b5cc688e4d2b4197774c2f5- 1Rs. 20,000false
- 2Rs. 40,000true
- 3Rs. 50,000false
- 4Rs. 80,000false
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Answer : 2. "Rs. 40,000"
Explanation :
Answer: B) Rs. 40,000 Explanation: The standard deduction of Rs. 40,000 is seek to provide relief to salaried tax payers in the Budget proposals in place of the present exemption allowed for transport allowance and reimbursement of miscellaneous medical expenses.
Q: 9 girls working 7 hours a day can complete a piece of work in 15 day. In how many days can 6 girls working for 9 hours a day, complete the same piece of work? 1661 05b5cc6b3e4d2b4197774d3c8
5b5cc6b3e4d2b4197774d3c8- 135/4 daysfalse
- 217.5 daystrue
- 319 3/4 daysfalse
- 437/3 daysfalse
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Answer : 2. "17.5 days"
Explanation :
Answer: B) 17.5 days Explanation: Let the number of days be 'p' As the work is same, we know that M1 x D1 x H1 = M2 x D2 x H2 Where M = Men, D = Days, H = Hours per day Here M1 = 9, D1 = 15, H1 = 7 M2 = 6, D2 = p, H2 = 9 => 9 x 15 x 7 = 6 x p x 9 => p = 35/2 = 17.5 days.
Q: A polygon has 44 diagonals, then the number of its sides are ? 1661 05b5cc754e4d2b4197774fbb9
5b5cc754e4d2b4197774fbb9- 113false
- 29false
- 311true
- 47false
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Answer : 3. "11"
Explanation :
Answer: C) 11 Explanation: Let the number of sides be n. The number of diagonals is given by nC2 - n Therefore, nC2 - n = 44, n>0 nC2 - n = 44 n2 - 3n - 88 = 0 n2 -11n + 8n - 88 = 0 n(n - 11) + 8(n - 11) = 0 n = -8 or n = 11. As n>0, n will not be -8. Therefore, n=11.
Q: A man reduces his travelling time by a fraction of 2/5, as a result the distance covered by the man is increased by 20%, find the percentage increase in the speed of the man ? 1660 05b5cc6c5e4d2b4197774dddc
5b5cc6c5e4d2b4197774dddc- 177%false
- 288%false
- 3100%true
- 499%false
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Answer : 3. "100%"
Explanation :
Answer: C) 100% Explanation:
Q: The first passenger train in India ran between 1660 05b5cc694e4d2b4197774c4b6
5b5cc694e4d2b4197774c4b6- 1Kalyan and Punefalse
- 2Bombay and Thanetrue
- 3Howrah and Delhifalse
- 4New Delhi and Madrasfalse
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Answer : 2. "Bombay and Thane"
Explanation :
Answer: B) Bombay and Thane Explanation: India's first passenger train run took place from Mumbai to Thane for around 34 kms on 16th April in the year 1853. That train was hauled by three steam locomotives : Sahib, Sindh and Sultan. That train had 14 carriages, carrying around 400 passengers.
Q: What value will come in place of question mark (?) in the number - series given below ? 4, 30, ?, 1440, 7195, 71940 1659 05b5cc6c4e4d2b4197774dca9
5b5cc6c4e4d2b4197774dca9- 1145true
- 2545false
- 3650false
- 4999false
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Answer : 1. "145"
Explanation :
Answer: A) 145 Explanation: 4 30 ? 1440 7195 71940 Here the given series follows a pattern of 4 4 x 10 - 10 = 30 30 x 5 - 5 = 145 145 x 10 - 10 = 1440 1440 x 5 - 5 = 7195 7195 x 10 - 10 = 71940 Hence, the missing number is 145
Q: Is a mushroom an autotroph? 1659 05b5cc670e4d2b4197774c05c
5b5cc670e4d2b4197774c05c- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: Mushrooms are heterotrophs. They are not plants or autotrophs. Every living thing that exists need energy in order to live. This energy ultimately comes from the sun, and only plants, or autotrophs, can directly use this energy to make food. Those organisms that cannot harness the sun's energy are known as heterotrophs. Mushrooms belong to kingdom Fungi and are heterotrophs because they decompose and consume nutrients from the soil. They are not green so they cannot photosynthesize For this reason, mushrooms and all other fungi are heterotrophs.
Q: Arun’s weight is 140% of Akhil’s weight. Nani’s weight is 90% of Shreyon’s weight. Shreyon’s weight is twice as much as Akhil’s. What percentage of Arun’s weight is Nani’s weight? 1659 05b5cc6b3e4d2b4197774d3f3
5b5cc6b3e4d2b4197774d3f3- 176%false
- 277%false
- 378%true
- 479%false
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Answer : 3. "78%"
Explanation :
Answer: C) 78% Explanation: Let Akhil's weight = p kg => Shreyon's weight = 2p kg Nani's weight = 0.9 x 2p = 1.8p kg => Arun's weight = 1.4p kg Required percentage = 1.4p1.8p x 100 = 77.8% ~= 78%

