IIT JEE Practice Question and Answer
8Q: When Ram was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Ram's brother is 6 years older than Ram and his mother is 3 years younger than his father, how old was Ram's sister when Ram was born ? 2692 05b5cc70ee4d2b4197774f342
5b5cc70ee4d2b4197774f342- 16 yearsfalse
- 28 yearsfalse
- 310 yearstrue
- 412 yearsfalse
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Answer : 3. "10 years"
Explanation :
Answer: C) 10 years Explanation: Ram age when he was born = 0 years=> His brother's age = 6 year=> His father's age = brother age + 32years = 6+32 = 38=> His mother's age = father's age - 3 = 35So sister's age = 35-25 = 10years.
Q: Find the missing number in the series 1, 6, ?, 15, 45, 66, 91 2690 15b5cc6afe4d2b4197774d230
5b5cc6afe4d2b4197774d230- 124false
- 228true
- 332false
- 426false
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Answer : 2. "28"
Explanation :
Answer: B) 28 Explanation: Here the given series 1, 6, ?, 15, 45, 66, 91 follows a Pattern in the series is, +5, +9, +13,...,.. +21, +25 So +4 is getting increased at every term addition. Missing Number in the series will be 15+(9+4) = 15 + 13 = 28.
Q: In the following options, select the one which is different from the other three ? 2689 05b5cc6c1e4d2b4197774db32
5b5cc6c1e4d2b4197774db32- 1Concentrationfalse
- 2Concoursefalse
- 3Radiationtrue
- 4Confluencefalse
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Answer : 3. "Radiation"
Explanation :
Answer: C) Radiation Explanation: Radiation shows the property of spreading while the rest three shows concentration at a point.
Q: A student can divide her books into groups of 5, 9 and 13. what is the smallest possible number of the books ? 2689 05b5cc74ae4d2b4197774fab3
5b5cc74ae4d2b4197774fab3- 1487false
- 2585true
- 3635false
- 4705false
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Answer : 2. "585"
Explanation :
Answer: B) 585 Explanation: The smallest possible number of books = L.C.M of 5, 9 and 13.Therefore, L.C.M of 5,9 and 13 is = 5 x 9 x 13 = 585.
Q: निम्नलिखित में से कौन एक आउटपुट डिवाइस नहीं है? 2689 05b5cc6abe4d2b4197774cffc
5b5cc6abe4d2b4197774cffc- 1स्कैनरtrue
- 2मॉनिटरfalse
- 3प्रिंटरfalse
- 4स्पीकरfalse
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Answer : 1. "स्कैनर "
Explanation :
Answer: A) Scanner Explanation:
Q: When Raj Tarun was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raj Tarun's brother is 6 years older than Raj Tarun and his mother is 3 years younger than his father, how old was Raj Tarun's sister when Raj Tarun was born ? 2687 05b5cc74ae4d2b4197774fa6d
5b5cc74ae4d2b4197774fa6d- 15false
- 210true
- 315false
- 48false
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Answer : 2. "10"
Explanation :
Answer: B) 10 Explanation: Raj Tarun's age = 0 when he was born.Then, given his brother is 6 years old.Then his father is 6 + 32 = 38 when Raj Tarun was bornAnd his mother is 3 years yonger than his father => so his mother was 35 years old when Raj Tarun was bornand his sister is 25 year younger than his mother so Raj Tarun's sister was 10 years old when Raj Tarun was born.
Q: In a certain code language, 'is uc he bh kr' mean 'Lucky likes to dance freely', 'ha by lm kr op' mean 'Dance can be a hobby', 'he id ac kr bh' mean 'Lucky teaches dance to kids' and 'kr id bh tw uc' mean 'Kids dance freely with Lucky'. Now answer the given question. 'Lucky likes to dance with kids' can be coded as ? 2685 05b5cc6cae4d2b4197774e031
5b5cc6cae4d2b4197774e031- 1he kr op id uc twfalse
- 2bh is he kr tw idtrue
- 3ac tw op bh uc idfalse
- 4None of the abovefalse
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Answer : 2. "bh is he kr tw id"
Explanation :
Answer: B) bh is he kr tw id Explanation: From given data, codes for Lucky - bh Likes - is to - he Dance - kr with - tw Kids - id Hence, Lucky like to dance with kids can be coded as 'bh is he kr tw id'.
Q: If Riya's age is four times the age of Siya and if Riya's age is 24 yrs , find the age difference between Riya and Siya ? 2685 05b5cc6dce4d2b4197774e98d
5b5cc6dce4d2b4197774e98d- 12 yrsfalse
- 212 yrsfalse
- 318 yrstrue
- 46 yrsfalse
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Answer : 3. "18 yrs"
Explanation :
Answer: C) 18 yrs Explanation: Let Siya's age = x Then Riya's age = 4x But given Riya's age = 24 => 4x = 24 => x = 6 Hence Siya's age = 6 yrs => The age difference = 24 - 6 = 18 yrs.