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Ssc cgl tier 1 08 08 2017 shift 1 Practice Questions & Answers

0 vote

The average marks of 40 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 73 instead of 37. What is the value of correct average?

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The average marks of 40 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 73 instead of 37. What is the value of correct average?
1). 24.3
2). 24.1
3). 24.5
4). 24.7

0 vote

The ratio of present ages of R and S is 11:17. Before 11 years the ratio of their ages was 11:20. What is R's present age (in years)?

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The ratio of present ages of R and S is 11:17. Before 11 years the ratio of their ages was 11:20. What is R's present age (in years)?
1). 51
2). 33
3). 22
4). 40

20 vote

If 2 T-shirts are offered free on purchase of 5 T-shirts, what is the effective discount (in %) on each T-shirt?

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If 2 T-shirts are offered free on purchase of 5 T-shirts, what is the effective discount (in %) on each T-shirt?
1). 40
2). 20
3). 30
4). 50

0 vote

What is the area (in sq cm) of a regular hexagon of side 14 cm?

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What is the area (in sq cm) of a regular hexagon of side 14 cm?
1). $147\sqrt{3}$
2). $441\sqrt{3}$
3). $196\sqrt{3}$
4). $294\sqrt{3}$

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M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?

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M is thrice as good as workman as N and together they finish a piece of work in 30 days. In how many days will M alone finish the work?
1). 50
2). 40
3). 60
4). 45