Multiple Choice QuestionsA river 3 m deep and 40 m wide is flowing at the rate of 2 km/h. How much water (in litres) will fall into the sea in a minute?
400000
4000000
40000
4000
The LCM of three different numbers is 120. Which of the following cannot be their HCF?
8
12
24
35
A number when divided by 49 leaves 32 as remainder. This number when divided by 7 will have the remainder as
4
3
2
5
In an examination, a student score 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 75 questions and secures 125 marks, the number of questions he attempts correctly is
35
40
42
46
The traffic lights at three different road crossings change after 24 s, 36 s and 54 s respectively. If they all change simultaneously at 10 : 15 : 00 am, then at what time will they again change simultanesouly?
10 : 16 : 54 am
10 : 18 : 36 am
10 : 17 : 02 am
10 : 22 : 12 am
A can do a work in 12 days. When he had worked for 3 days, B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work?
6 days
12 days
4 days
8 days
A and B can complete a piece of work in 8 days. B and C can do it in 12 days, C and A can do it in 8 days. A, B and C together can complete it in
4 days
5 days
6 days
7 days
X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then, the time in which they can complete the work together is
15 days
10 days
5 days
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