SSC CGL Tier-2 13th September 2019 Maths

Instructions

For the following questions answer them individually

Question 31

A right prism has height 18 cm and its base is a triangle with sides 5 cm, 8 cm and 12 cm. What is its lateral surface area (in $$cm^2$$) ?

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Question 32

A can do one-third of a work in 15 days, B can do 75% of the same work in 18 days and C can do the same work in 36 days. B and C work together for 8 days. In how many days will A alone complete the remaining work?

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Question 33

A person buys 80 kg of rice and sells it at a profit of as much money as he paid for 30 kg. His profit per cent is:

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Question 34

To cover a distance of 416 km, a train A takes $$2\frac{2}{3}$$ hours more than train B. If the speed of A is doubled, it would take $$1\frac{1}{3}$$ hours less than B, What is the speed (in km/h) of train A?

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Question 35

The value of $$\frac{2\sqrt{10}}{\sqrt{5} + \sqrt{2} - \sqrt{7}} - \sqrt{\frac{\sqrt{5} - 2}{\sqrt{5} + 2}} - \frac{3}{\sqrt{7} - 2}$$ is:

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Question 36

The price of oil is increased by 20%. However, its consumption decreased by $$8\frac{1}{3}\%$$. What is the percentage increase or decrease in the expenditure on it?

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Question 37

The average age of 120 students in a group is 13.56 years. 35% of the number of students are girls and the rest are boys. If the ratio of the average age of boys and girls is 6 : 5, then what is the average age (in years)of the girls?

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Question 38

The marked price of an article is ₹1500. If two successive discounts, each of x% . on the marked price is equal to a single discount of ₹587.40, then what will be the selling price ofthe articleif a single discount of x% is given on the marked price?

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Question 39

Two parallel chords on the same side of the centre of a circle are 12 cm and 20 cm long and the radius of the circle is $$5\sqrt{13}$$ cm. What is the distance (in cm) between the chords?

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Question 40

Study the following bar graph and answer the question given.

The ratio of the total demand of motor cycles of companies A, C and E to the total production of motorcycles of B and C is:

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