Maths Practice Question and Answer
8 Q: In how many different ways can letters of the word ‘SECOND’ be arranged?
3345 05d4a91060c56ef19ba1db78d
5d4a91060c56ef19ba1db78d- 1720true
- 2120false
- 35040false
- 4270false
- 5None of the abovefalse
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Answer : 1. "720"
Explanation :
Number of letter in word ‘SECOND’ =6
The number of ways can the letters of word be arranged =6×5×4×3×2×1=720
Q: What is 7 + 7 ÷ 7 + 7 × 7 - 7 = 3306 05b5cc6a9e4d2b4197774cec5
5b5cc6a9e4d2b4197774cec5- 10false
- 242false
- 350true
- 457false
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Answer : 3. "50"
Explanation :
Answer: C) 50 Explanation: Given 7 + 7/7 + 7 x 7 - 7 By using BODMAS rule, 7 + 1 + 7 x 7 - 7 = 8 + 49 - 7 = 57 - 7 = 50. Hence 7 + 7/7 + 7 x 7 - 7 = 50.
Q: A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively? 1612 05b5cc6bce4d2b4197774d88b
5b5cc6bce4d2b4197774d88b- 17:4false
- 211:4false
- 34:7false
- 48:3true
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Answer : 4. "8:3"
Explanation :
Answer: D) 8:3 Explanation: Let the speed of the boat upstream be p kmph and that of downstream be q kmph Time for upstream = 8 hrs 48 min = 845hrs Time for downstream = 4 hrs Distance in both the cases is same. => p x 845= q x 4 => 44p/5 = 4q => q = 11p/5 Now, the required ratio of Speed of boat : Speed of water current = q+p2:q-p2 => (11p/5 + p)/2 : (11p/5 - p)/2 => 8 : 3
Q: Simran started a software business by investing Rs. 50,000. After six months, Nanda joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was Simran's share in the profit ? 3308 05b5cc731e4d2b4197774f7f1
5b5cc731e4d2b4197774f7f1- 112,421false
- 29,423false
- 311,600false
- 410,500true
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Answer : 4. "10,500"
Explanation :
Answer: D) 10,500 Explanation: The ratio of their investments:50000x36 : 80000x30 = 3 : 4Simran's share of profit = (24500x3/7) = Rs.10,500.
Q: The following pie-chart shows the study-time of different subject of a student in a day. Study the pie chart and answer the following questions.The time spent to study history and chemistry is 4 hours 30 minutes, Then the student studies Physics for
2209 05d1ef9b8c068c021a4048f2a
5d1ef9b8c068c021a4048f2a- 11 hourfalse
- 22.9 hourfalse
- 32 hourfalse
- 43 hourstrue
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Answer : 4. "3 hours"
Q: The following pie-chart shows the study-time of different subject of a student in a day. Study the pie chart and answer the following questions.If then student studies chemistry for 3 hours, then he/she studies geography for
1549 05d1efcb6c068c021a4048f2f
5d1efcb6c068c021a4048f2f- 11 hourfalse
- 22 hourtrue
- 31 hour 30 minutesfalse
- 42 hour 30minutesfalse
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Answer : 2. "2 hour"
Q: The ratio between boys and girl’s in a school is 4:6 respectively. If the number of boys is increased by 200 the ratio becomes 5:6 respectively. How many girls are there in the school? 2251 05d1b06bf1fc62311c773685b
5d1b06bf1fc62311c773685b- 11200true
- 2800false
- 31000false
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Answer : 1. "1200"
Q: A is thrice as fast as B. Together they can do a job in 15 days. In how many days will B finish the work? 2717 05d1488909aeb0a08f1e67455
5d1488909aeb0a08f1e67455- 140false
- 260true
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