Practice Question and Answer
8 Q: A series is given, with one term missing. Choose the correct alternative from the given options that will complete the series.
51 (?) 57 65 81
2474 060ab4a55c7f1592dd0de160b
60ab4a55c7f1592dd0de160b51 (?) 57 65 81
- 153true
- 254false
- 352false
- 451false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "53 "
Q: A box contains 4 different black balls, 3 different red balls and 5 different blue balls. In how many ways can the balls be selected if every selection must have at least 1 black ball and one red ball ? 2474 05b5cc6f4e4d2b4197774f004
5b5cc6f4e4d2b4197774f004- 124 - 1false
- 22425-1false
- 3(24-1)(23-1)25true
- 4Nonefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "(24-1)(23-1)25"
Explanation :
Answer: C) C Explanation: It is explicitly given that all the 4 black balls are different, all the 3 red balls are different and all the 5 blue balls are different. Hence this is a case where all are distinct objects. Initially let's find out the number of ways in which we can select the black balls. Note that at least 1 black ball must be included in each selection. Hence, we can select 1 black ball from 4 black ballsor 2 black balls from 4 black balls.or 3 black balls from 4 black balls.or 4 black balls from 4 black balls. Hence, number of ways in which we can select the black balls = 4C1 + 4C2 + 4C3 + 4C4= 24-1 ........(A) Now let's find out the number of ways in which we can select the red balls. Note that at least 1 red ball must be included in each selection. Hence, we can select 1 red ball from 3 red ballsor 2 red balls from 3 red ballsor 3 red balls from 3 red balls Hence, number of ways in which we can select the red balls= 3C1 + 3C2 + 3C3=23-1........(B) Hence, we can select 0 blue ball from 5 blue balls (i.e, do not select any blue ball. In this case, only black and red balls will be there)or 1 blue ball from 5 blue ballsor 2 blue balls from 5 blue ballsor 3 blue balls from 5 blue ballsor 4 blue balls from 5 blue ballsor 5 blue balls from 5 blue balls. Hence, number of ways in which we can select the blue balls= 5C0 + 5C1 + 5C2 + … + 5C5= 25..............(C) From (A), (B) and (C), required number of ways= 2524-123-1
Q: Ayonika Paul, an Indian Player belongs to which sports?
2474 05daffc787f47a948b612128f
5daffc787f47a948b612128f- 1Boxingfalse
- 2Shootingtrue
- 3Wrestlerfalse
- 4Athletefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Shooting"
Q: Three numbers are in the ratio 5: 7: 12. If the sum of the first and the third numbers is greater than the second number by 50. The sum of the three numbers is
2474 05f3282b4b07ff927c147b2da
5f3282b4b07ff927c147b2da- 195false
- 285false
- 3125false
- 4120true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "120 "
Q: What day of the week will be on 1st January 2033?
2473 064785e1ee0088e21fc8f6423
64785e1ee0088e21fc8f6423- 1Saturdaytrue
- 2Mondayfalse
- 3Sundayfalse
- 4Tuesdayfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Saturday"
Q: What are Lappa, Lappi, Kiran and Gokharu?
2473 06385f3fd49a42a5ac18f8a08
6385f3fd49a42a5ac18f8a08- 1Characters in Rajasthani film 'Sasu maa'false
- 2Different varieties of lace/gotatrue
- 3Names of sherwanifalse
- 4Varieties of higher yielding moth (kidney bean, phaseolus aconite folius)false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Different varieties of lace/gota "
Explanation :
Lappa, Lappi, Kiran, Bankali, Bijiya, Mukesh and Champakali are the types of Gota. Khandela (Sikar) and Bhinay (Ajmer) are the main centers of Gota manufacturing. Artistic ivory bangles are made in Jaipur. The work of digging and artistic carving on brass utensils is called Moradabadi art.
Q: if the square root of 841 is 29, then square root of 0.0000084 is equal to:
2473 05ee0c1a9ca41b347ed34f874
5ee0c1a9ca41b347ed34f874- 10.029false
- 20.0029true
- 30.00029false
- 40.29false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "0.0029"
Q: Computer process data into information by working exclusively with:
2473 15f054591bedd52553096e4fd
5f054591bedd52553096e4fd- 1Charactersfalse
- 2Numberstrue
- 3Multimediafalse
- 4Wordsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice

