Class 11 PSA Quantitative Reasoning Test

The roots of the equation: \(3{x^2} - 7x + 4 = 0\) are

A man goes at the speed of 5 km/hour from P to Q and returns at the speed of 3 km/hour from Q to P. The average speed of whole journey is

Fundamental Theorem of algebra says that any polynomial equation of degree n has n roots – real or complex and no more also complex and irrational roots exists in pair contrary to it any trigonometric equation has infinite number of roots Number of zeroes/roots of the polynomial equation \({x^4} + 1 = 0\) will be

The sum of two sides of a triangle in comparison to third side is always

In an isosceles right angled triangle PQR, angle Q =90 then value of 2 sinp cosp is

If the circumference of edge of a hemisphere is 132 cm, find the radius of hemisphere:

If Kunal‟s salary is 150% of Ashu‟s salary &Ashu‟s salary is 80% of Kunal‟s salary .then the ratio of salaries of Kunal & Ashu.

Kartikay sold two articles for RS 297 each, gaining 10% an one & losing 10% on the other. Find gain % or loss %

A train 100 m long passes a bridge in 25 sec. moving at a speed of 72 km/hr. what is the length of bridge.

If a train has to cross a platform it has to cover a distance equal to

Pipe A can fill a tank in 20 min. & pipe B can empty it in 30 min. If both are opened together, in what time will the tank be filled?

A,B,C enter into partnership. A invest Rs 1400 for 8 months, B Rs 1800 for 7 months & C Rs 2100 for 4 months, they gain Rs 690 together. The share of A,B,C will be

When 30% of a number is added to another number, the second number increases to 140%. The ratio between the first & second number will be

What will be compound interest on Rs 15000 at 8% per annum for 1 year compounded half yearly.

A person borrowed Rs 500 at the rate of 5% per annum at S.I what amount will he pays to clear the debt after 4 year?

In a bag there is 7 red, 5 white, and 9 black balls. If a ball is drawn from a bag, what is the probability of it not a red ball?

The mean of 15 numbers is 25. If 4 is subtracted from every number, what will be the new mean?

A cricketer has an average score of 60 runs in 10 innings. The number of runs he has to take in eleventh inning, to raise the mean score to 62 is: