2017 SSC CGL 10 Aug Shift-2

Instructions

For the following questions answer them individually

Question 81

The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?

Question 82

70% of the cost price of a article is equal to the 40% of its selling price. What is the profit or loss percentage?

Question 83

a% of b + b% of a = ______


Question 84

If I walk at 7/6 of my usual speed, then I reach my office 15 minutes early. What is the usual time taken (in minutes) by me to reach the office?

Question 85

A person lent Rs 10000 to B for 3 years and Rs 6000 to C for 4 years on simple interest at same rate of interest and received Rs 5400 in all from both of them as interest. What is the rate of interest (in %)?

Question 86

If $$x^3 + 2x^2 - 5x + k$$ is divisible by x + 1, then what is the value of k?


Question 87

If $$3x+[\frac{1}{(5x)}]=7$$, then what is the value of $$\frac{5x}{(15x^2 + 15x + 1)}$$?

Question 88

If $$x +[\frac{1}{(4x)}]=\frac{5}{2}$$, then what is the value of $$\frac{(64x^6 + 1)}{8x^3}$$ ?

Question 89

If $$x^2 + x = 19$$, then what is the value of $$(x + 5)^2+[\frac{1}{(x + 5)^2}]$$ ?


Question 90

In triangle ABC, AD, BE and CF are the medians intersecting at point G and area of triangle ABC is 156 cm2. What is the area $$(in cm^2)$$ of triangle FGE?

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