SSC CGL 24th August 2021 Shift-1

Instructions

For the following questions answer them individually

SSC CGL 24th August 2021 Shift-1 - Question 51


If $$a^4 + b^4 + a^2b^2 = 273$$ and $$a^2 + b^2 - ab = 21$$, then one of the values of $$\left(\frac{1}{a} + \frac{1}{b}\right)$$ is:

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SSC CGL 24th August 2021 Shift-1 - Question 52


A train covers 450 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less to cover the same distance. How much time will it take to cover 315 km at its usual speed?

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SSC CGL 24th August 2021 Shift-1 - Question 53


If selling price of 75 articles is equal to cost price of 60 articles, then the approximate loss or gain percent is:

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SSC CGL 24th August 2021 Shift-1 - Question 54


If p is the third proportional to 3, 9, then what is the fourth proportional to 6, p, 4?

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SSC CGL 24th August 2021 Shift-1 - Question 55


Let $$\triangle$$ABC $$\sim$$ $$\triangle$$RPQ and $$\frac{ar(\triangle \text{ABC})}{ar(\triangle \text{PQR})}=\frac{16}{25}$$. If PQ = 4 cm, QR = 6 cm and PR = 7 cm, then AC (in cm) is equal to:

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SSC CGL 24th August 2021 Shift-1 - Question 56


Study the following table and answer the question:
Number of students Appeared (A) and Passed (P) in an annual examination from four schools Q, R, S & T in five years (2014 to 2018)

The total number of students passed from school S in 2014 and 2017 is what percent of 90% of the total number of students appeared from school T in 2015, 2016 and 2017? (correct to one decimal place)

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SSC CGL 24th August 2021 Shift-1 - Question 57


The sum of 3-digit numbers abc, cab and bca is not divisible by:

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SSC CGL 24th August 2021 Shift-1 - Question 58


A customer wanted to purchase an item marked for ₹10000. Shopkeeper offered two types of discounts, 25% flat discount or successive discounts of 14% and 12%. Which is the better offer for the customers and by how much?

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SSC CGL 24th August 2021 Shift-1 - Question 59


If $$\tan \theta + 3 \cot \theta - 2\sqrt{3} = 0, 0^\circ < \theta < 90^\circ$$, then what is the value of $$(\cosec^2 \theta + \cos^2 \theta)?$$

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SSC CGL 24th August 2021 Shift-1 - Question 60


ABCD is a cyclic quadrilateral such that when sides AB and DC are produced, they meet at E, and sides AD and BC meet at F, when produced. If $$\angle$$ADE = 80$$^\circ$$ and $$\angle$$AED = 50$$^\circ$$, then what is the measure of $$\angle$$AFB?

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